Living Donor Liver Transplantation Explained: Donor Compatibility, Surgery and Regrowth

The phone call usually comes on an ordinary weekday. A sister, a grown son, a college roommate hears that the person they love has cirrhosis that is no longer holding steady, and that the waiting list is long. Then someone at the clinic mentions a second path: a living donor. Within an hour, a healthy person who has never had surgery is searching for the words living donor liver transplant explained, trying to understand what they would actually be signing up for.

Most of what they find is either a fundraising page or a dense surgical paper. Neither answers the questions that keep people awake: How much of my liver would they take? Does it really grow back? Could I die doing this? What can my father never do again once he has a new liver?

This guide walks through those questions with the same evidence transplant teams rely on, in plain language, without promises. The medical decisions belong to the treating team and to the two people at the center of it. Understanding the terrain is the part you can do tonight.

How does a living donor liver transplant actually work?

Start with the anatomy, because everything else follows from it. The liver sits under the right ribs and weighs roughly three pounds in an adult. Surgeons divide it into eight functional segments, each with its own blood supply and bile drainage. That segmental design is what makes living donation possible: a portion can be removed along natural dividing lines while the rest keeps working.

In a living donor liver transplant, two operations happen on the same day, usually in adjoining operating rooms. In one room, the donor undergoes a partial hepatectomy, which simply means surgical removal of part of the liver. In the other, the recipient’s diseased liver is taken out entirely and the donated segment is sewn into its place. Surgeons connect the hepatic artery (the vessel bringing oxygen-rich blood), the portal vein (the large vein carrying blood from the gut), the hepatic vein (the outflow back to the heart) and the bile duct (the tube that drains bile toward the intestine). Each connection is narrower than in a whole-organ transplant, which is one reason these operations demand a specialized team.

The transplanted piece begins filtering blood almost immediately. Over the following weeks it enlarges to meet the recipient’s needs, while the donor’s remaining liver does the same. Mayo Clinic describes both portions regenerating to near-normal volume within a few months of surgery.

Timing is the practical advantage. A deceased donor liver arrives when it arrives, often at night, after the recipient has become sicker. A living donor operation is scheduled, which lets the team operate while the recipient is stronger and lets both families plan work, childcare and travel. The NHS notes that living donation can shorten the wait for people who might otherwise deteriorate before a suitable deceased donor organ becomes available.

Why does the liver regrow when other organs cannot?

The regrowth is the part most people find hardest to believe, so it deserves a proper explanation rather than a reassuring wave of the hand.

Hepatocytes, the main working cells of the liver, spend most of their lives in a resting state. When a large portion of tissue is removed, the sudden change in blood flow and the chemical signals from the gut act like a starting gun. Within hours, the remaining cells begin to divide. This is not scar tissue filling a gap, as happens in skin or heart muscle; it is genuine functional tissue restoring the organ’s capacity. The medical term is compensatory hyperplasia, which means the surviving cells multiply until the organ’s working mass matches what the body needs.

Two details matter for expectations. First, the liver regrows mass, not shape. A donor who gives the right lobe does not grow a new right lobe; the left portion enlarges and shifts to fill the space. Imaging months later shows a liver that looks different but functions normally. Second, regrowth is fast but not instant. Johns Hopkins Medicine describes the donor’s liver returning to close to its original size within a few months, with much of that growth happening in the first several weeks. The recipient’s graft follows a similar timeline.

What the evidence does not show is unlimited regrowth. The liver cannot regenerate from any fraction, which is why surgeons calculate carefully how much can be safely removed. Nor does regeneration repair existing disease; a liver already damaged by cirrhosis (widespread scarring that stiffens the organ and blocks normal blood flow) does not regrow healthy tissue. That distinction is precisely why the recipient needs a transplant in the first place, and why donors must have healthy livers to begin with.

Who is usually offered a living donor liver transplant, and who is asked to wait?

Living donation is not a shortcut around the transplant evaluation. The recipient first has to qualify for a liver transplant by the same standards used for deceased donor organs, and only then does the team consider whether a living donor is appropriate.

People commonly offered this route include adults with chronic liver failure from cirrhosis of any cause, including alcohol-related disease, viral hepatitis, metabolic dysfunction-associated fatty liver disease and autoimmune conditions such as primary biliary cholangitis or primary sclerosing cholangitis. Some people with early liver cancers confined to the liver are candidates. The NHS and Mayo Clinic both list these among the main reasons a transplant is considered. Children make up an important group: biliary atresia, a condition in which the bile ducts are blocked or absent from birth, is the leading reason for pediatric liver transplant, and a small segment from an adult parent is often a good size match for a small child.

Who is usually asked to wait, or is not offered surgery at that time? Teams generally pause when a recipient has an active infection, uncontrolled heart or lung disease that would make major surgery unsafe, cancer that has spread beyond the liver, or ongoing alcohol or drug use without a period of treatment and stability. Someone whose liver disease is stable and mild may be told they are not yet sick enough to justify the risks of transplant; scoring systems such as MELD (Model for End-Stage Liver Disease, a calculation based on blood tests that estimates how urgently a transplant is needed) help guide that judgment.

Acute liver failure, where a previously healthy liver fails over days, is handled differently. Living donation is sometimes used, but the compressed timeline for donor evaluation raises ethical and safety concerns that each team weighs individually. In every case, candidacy is a decision the transplant team makes after a full assessment, not a box a family can tick.

Living liver donor requirements: what donor compatibility really means

People often assume liver donation works like a puzzle piece that either fits or does not. The reality is a layered assessment, and compatibility covers far more than blood type.

Blood group comes first. The donor’s ABO blood type must be compatible with the recipient’s, following the same rules used for transfusion: type O donors can give to any group, type AB recipients can receive from any group, and A and B must match or come from O. Some centers perform ABO-incompatible transplants with additional treatment to remove antibodies, but that is a specialized pathway rather than the norm. Unlike kidney transplantation, close tissue typing is not generally required for the liver, an organ that tends to provoke less immune rejection.

Age and general health come next. Mayo Clinic lists living liver donors as typically between 18 and 60 years old, in good physical and mental health, with no significant liver disease, uncontrolled high blood pressure, diabetes with organ damage, active cancer or serious heart or lung conditions. Body weight matters because excess fat inside the liver, called steatosis, makes the remaining tissue less resilient after surgery and the donated portion less likely to function well.

Anatomy is the piece families cannot predict. Detailed imaging maps the donor’s blood vessels and bile ducts. Some healthy people have branching patterns that make a safe division technically difficult, and they are declined for that reason alone. Size matching also matters: the donated segment needs to be large enough for the recipient’s body but small enough to leave the donor with adequate liver.

Finally, the donor must be a genuine volunteer. Programs use an independent donor advocate, a clinician or social worker whose only job is protecting the donor’s interests, to confirm that no pressure or payment is involved. A donor can withdraw at any point, and teams will provide a medical reason to the family if asked, so that the decision stays private.

Does a living liver donor need to be a relative?

No. Blood relationship is not a medical requirement for liver donation, and this surprises many families who assume only a parent, sibling or child could qualify.

Because the liver does not need close tissue matching, a compatible blood type and healthy anatomy are what count. Spouses, in-laws, friends, coworkers and members of the same faith community donate regularly. Some programs also accept non-directed donors, people who offer a portion of their liver to whoever needs it most without knowing the recipient. The NHS describes both directed donation (to a specific person) and non-directed altruistic donation as recognized routes.

Relatives still have practical advantages. They are more likely to share a blood group, they often live nearby for the weeks of evaluation and follow-up, and the emotional calculus is usually clearer. But they also carry a specific risk: a genetic liver condition in the recipient may be present, undetected, in a sibling or child. Part of the evaluation looks for exactly that.

Family pressure is the harder issue. When a parent is failing, adult children can feel there is no real choice. Transplant programs take this seriously. The independent donor advocate meets the potential donor alone, and any donor who has doubts can step back. Teams routinely tell families only that a candidate was “not suitable,” without specifying whether the reason was medical or personal.

One more configuration is worth knowing about. Paired exchange, well established in kidney transplantation, is used in a smaller number of liver programs. If a willing donor is blood-type incompatible with their intended recipient, they may donate to a stranger whose own incompatible donor gives to the first recipient. It is logistically complex and not widely available, but it exists, and it is a reasonable question to raise with the team.

How much liver is removed from a donor?

The honest answer is: it depends on who is receiving it, and the numbers are larger than most people expect.

For an adult recipient, surgeons usually remove the right lobe, which accounts for roughly 60 percent of the donor’s liver, according to Mayo Clinic’s description of the procedure. Some adult recipients who are smaller can receive the left lobe instead, which is closer to 30 to 40 percent of the organ and leaves the donor with more tissue. For a child, the surgeon typically takes only the left lateral segment, the leftmost slice of the liver, which is a considerably smaller fraction and carries a lower risk for the donor.

The precise amount is calculated before surgery using imaging that measures liver volume to the milliliter. Two figures guide the plan. The first is the remnant, the portion left in the donor, which must be large enough to sustain them while it regrows. The second is the graft-to-recipient weight ratio, which compares the size of the donated piece with the size of the person receiving it. Too small a graft may struggle to keep up with the recipient’s needs in the first days; too large a removal endangers the donor. Surgeons choose the division that keeps both people within safe margins, and if no such division exists, the donation does not proceed.

The gallbladder is removed along with the right lobe, since it sits attached to that side and cannot function once its bile drainage is rerouted. Donors live normally without it; the body simply releases bile continuously rather than storing it between meals. Some people notice looser stools after fatty meals for a while, a mild and usually temporary effect.

What is not removed matters too: no other organ is touched, and the donor’s blood vessels feeding the remaining liver are preserved intact.

What does the living donor evaluation involve?

Evaluation is deliberately slow and thorough. Johns Hopkins Medicine and the NHS describe a process that typically unfolds over several weeks, sometimes longer, and that a meaningful share of volunteers do not complete because something is found that makes donation unwise.

The medical work-up begins with blood tests: blood group, liver enzymes, kidney function, clotting studies and screening for hepatitis viruses, HIV and other infections that could be transmitted. Imaging follows. A CT or MRI scan maps the liver’s volume and the branching of its arteries, veins and bile ducts. Some centers add a specialized MRI to measure fat content in the liver, and occasionally a liver biopsy, a needle sample of tissue examined under a microscope, is used when imaging leaves questions.

Heart and lung fitness for a long operation is assessed with an electrocardiogram, chest imaging and, for older candidates or those with risk factors, stress testing. Age-appropriate cancer screening is completed.

The psychosocial assessment is not a formality. A psychologist or social worker explores motivation, understanding of risk, support at home, financial stability during recovery time away from work, and any history of substance use or mental health conditions that surgery and recovery could destabilize. The independent donor advocate reviews everything and can halt the process if the donor’s interests are not being protected.

At the end, a multidisciplinary committee of surgeons, hepatologists (physicians specializing in liver disease), anesthesiologists, nurses, ethicists and social workers reviews the case. Approval, deferral or decline is a committee decision, communicated to the donor first. Many donors describe the evaluation as the most reassuring part of the journey, precisely because no one is trying to persuade them.

What happens on the day of surgery for the donor and the recipient?

Both people arrive early, usually having stopped eating and drinking overnight. The donor’s operation begins first, because the recipient’s diseased liver should not be removed until the team has confirmed the donated segment is healthy and ready.

Under general anesthesia, the donor surgeon makes an incision under the right ribs, often shaped like an inverted L or a curve, though some programs use smaller or laparoscopic approaches for left-sided donations. Using ultrasound, the surgeon confirms the planned dividing line, then carefully separates the tissue while controlling blood flow and sealing small vessels and bile ducts one by one. This meticulous division, rather than any single dramatic step, is what makes donor surgery take several hours. Mayo Clinic describes the donor operation lasting roughly four to six hours, with the recipient’s surgery often longer.

Once the segment is freed, it is flushed with a cold preservation solution and carried, often just down the corridor, to the recipient’s room. There, the recipient’s own liver has been prepared for removal. Taking out a cirrhotic liver is often the most demanding phase for the recipient, because scarring and enlarged fragile veins around the organ can bleed heavily. Blood products are frequently needed.

The new segment is positioned and the vessel connections are sewn under magnification, smallest first. The moment blood flow is restored, the graft usually turns from pale to pink within seconds, and bile production may be visible in the operating room, an early sign the tissue is working. The bile duct connection is completed last.

Both patients wake in intensive care with drains, a urinary catheter and pain control in place. The donor typically leaves intensive care within a day; the recipient is watched more closely, with frequent blood tests and ultrasound checks of blood flow through the new connections.

Living donor vs deceased donor liver transplant: how they compare

Neither route is universally better. Each trades one set of advantages for another, and the right choice depends on how sick the recipient is, whether a suitable donor exists and what the transplant team judges safest. The table summarizes the differences most families ask about.

Feature	Living donor liver transplant	Deceased donor liver transplant
Timing	Scheduled in advance while recipient is relatively stable	Unpredictable; depends on organ availability and waiting-list priority
Organ received	A portion (segment or lobe) that regrows in the recipient	Usually a whole liver; occasionally a split liver shared between two recipients
Time organ is outside the body	Short, often under an hour, because both surgeries run in parallel	Longer, as the organ is transported from another hospital
Risk to another person	Yes; a healthy donor undergoes major surgery	None
Surgical complexity	Higher; smaller vessels and bile ducts to connect	Lower on the vessel connections, though the recipient may be sicker
Bile duct complications	More frequent, according to Mayo Clinic and Johns Hopkins descriptions	Less frequent
Who is typically a candidate	Recipients with a willing, compatible, healthy donor and anatomy that permits a safe split	Any recipient who meets transplant criteria

A few points behind the table matter. The shorter time outside the body is a genuine biological advantage, since liver tissue tolerates cold storage poorly compared with kidneys. The scheduled timing lets teams operate before complications such as fluid buildup, bleeding from swollen veins or confusion from toxin buildup make surgery riskier. Against this stands the single unavoidable fact: living donation exposes a healthy person to harm for someone else’s benefit. Transplant ethics treats that as acceptable only when the donor is fully informed, freely consenting and at low predicted risk.

Split liver transplantation, in which a deceased donor liver is divided between an adult and a child, offers some of the same anatomical logic without a living donor, but depends on a suitable organ becoming available. Your team can explain which options apply to your situation.

Liver donor recovery time: what the first days and weeks usually look like

Donors are healthy people who wake up feeling, for a few days, quite unwell. That contrast catches many by surprise, so it helps to know what is typical.

The first two to three days are dominated by incision pain, fatigue and the ordinary discomforts of abdominal surgery: a sore throat from the breathing tube, bloating as the gut wakes up, and difficulty finding a comfortable position. Pain is managed by the anesthesia and surgical teams, with the specifics decided by them. Nurses will have donors sitting up and walking short distances by the first day, because movement lowers the risk of blood clots and pneumonia. Drains and the urinary catheter usually come out within a few days.

Johns Hopkins Medicine describes a typical donor hospital stay of about a week, with discharge once the person is eating, walking independently, managing pain with oral medicine and showing blood tests that confirm the remaining liver is functioning. Mild jaundice (yellowing of the skin or eyes) in the first days can occur as the reduced liver catches up, and usually resolves as regrowth proceeds.

Home recovery is measured in weeks rather than days. Fatigue is the dominant complaint and typically lifts gradually. Both Mayo Clinic and Johns Hopkins describe most donors returning to desk-based work and normal daily activities within roughly six to eight weeks, with heavy lifting restricted for a longer period to let the abdominal wall heal. Follow-up visits with blood tests and sometimes imaging track liver function and regrowth.

Emotional recovery deserves a mention. Some donors feel unexpectedly low in the first weeks, particularly if the recipient has complications. Programs generally offer psychological support as part of donor follow-up, and asking for it is a sign of good self-care, not weakness.

What recovery and follow-up look like for the recipient

The recipient’s path is longer and more closely monitored, because two challenges run at once: healing from a very large operation and teaching the immune system to tolerate a new organ.

The NHS describes a typical hospital stay of one to two weeks after liver transplant, often longer if the person was very unwell beforehand. Daily blood tests track how well the graft is clearing toxins and producing clotting proteins. Doppler ultrasound checks blood flow through the new artery and veins, since a clot in the hepatic artery in the early days is one of the most serious complications and needs urgent attention.

Immunosuppressants begin around the time of surgery. These are medicines that dampen the immune response so the body does not attack the transplanted tissue, a process called rejection. The mainstay class is the calcineurin inhibitors, which block a signaling step that activated immune cells need in order to multiply. They are usually combined, at least initially, with corticosteroids and sometimes an antimetabolite, another class that slows immune cell division. Doses are adjusted frequently in the first months based on blood levels and lab results, and every adjustment is made by the transplant team. Most recipients remain on some immunosuppression for life, typically at lower intensity over time.

Because these medicines lower defenses, recipients are watched for infection and are commonly given preventive treatments against specific viruses and fungi in the early months. Regular clinic visits, weekly at first and spacing out over the year, monitor kidney function, blood pressure, blood sugar and cholesterol, all of which immunosuppressants can affect.

The NHS notes that returning to most normal activities within a few months is common, while full recovery can take up to a year. Rejection episodes, when they happen, are most often in the first weeks and are usually detected on routine blood tests before symptoms appear, which is one reason attending every scheduled visit matters so much.

What can't you do after donating a liver?

The list of permanent restrictions for a liver donor is short, and this is one of the more encouraging facts about the procedure. The temporary list is longer, and worth respecting.

In the first weeks, the main limits are physical. Lifting anything heavier than a light grocery bag, strenuous exercise, contact sports and activities that strain the abdominal wall are restricted while the incision heals; Johns Hopkins and Mayo Clinic both describe a gradual return to full activity over the first couple of months, with the surgical team clearing each step. Driving is off the table until pain medicine is no longer needed and the person can brake sharply without hesitation. Alcohol is generally avoided while the liver regrows, as it places extra metabolic demand on tissue that is working hard already; the team will advise when, and whether, moderate drinking is reasonable again.

Medicines deserve special mention. Some over-the-counter pain relievers are processed by the liver, and donors are usually asked to check with the team before taking anything new during recovery. This is a temporary caution rather than a lifelong rule.

Once recovered, most donors have no medical restrictions. They can exercise, travel, work physically demanding jobs and eat a normal diet. Pregnancy after donation is generally considered safe once recovery is complete, though transplant programs commonly advise waiting a period of months and informing the obstetric team of the surgical history. Donors are asked to keep up routine follow-up, including blood tests at intervals in the first two years, and to maintain a liver-friendly lifestyle: a healthy weight, limited alcohol and avoidance of unnecessary liver-stressing substances.

One honest caveat: a donor can never donate a portion of liver again. A small number of donors also report long-term changes such as sensitivity around the scar or altered bowel habits after gallbladder removal. These are real, generally mild, and something to discuss rather than dismiss.

What are the real risks for the donor and for the recipient?

Families deserve the risks stated plainly, without either alarm or minimization.

For the donor, the most common problems are those of any major abdominal operation: bleeding, wound infection, blood clots in the legs or lungs, pneumonia and reactions to anesthesia. Specific to liver surgery are bile leaks, where bile escapes from the cut surface or the sealed ducts and may need a drain or an endoscopic procedure; narrowing of the bile ducts later; and, rarely, insufficient function of the remaining liver in the first days, which is why remnant size is calculated so carefully. Incisional hernias can develop months later. Mayo Clinic and the NHS both describe these as the principal donor complications.

The question people search most often, and rarely find answered honestly, is whether donors die. The answer is that death after living liver donation is extremely rare but has occurred, and no reputable program will describe the risk as zero. Right-lobe donation carries higher risk than left-sided or pediatric segment donation because more tissue is removed. Because this guide does not quote survival statistics outside a named guideline or systematic review, the most useful step is to ask your program directly for its own donor complication figures and how they compare with published registry data. A good team will answer without hesitation.

For the recipient, risks include bleeding, hepatic artery or portal vein clots, bile duct leaks or narrowing (more frequent with partial grafts, as noted by Johns Hopkins), a graft that is slow to function, rejection, infection made more likely by immunosuppression, and the long-term side effects of those medicines, including kidney strain, high blood pressure, diabetes and an increased risk of certain cancers, particularly skin cancers. The original disease can return in the new liver in some conditions.

Alternatives include waiting for a deceased donor organ, split liver transplant, and, for some, continued medical management. Each carries its own risks, and the comparison is one only the treating team can make for a specific person.

What happens if you drink alcohol after a liver transplant?

This question comes up so often, and with so much anxiety attached, that it deserves a direct answer grounded in how the new liver actually works.

Alcohol is processed almost entirely by the liver, and its breakdown products damage liver cells directly. A transplanted liver is not more robust than the original; if anything, it is more vulnerable in the first months while it regrows and adapts, and while immunosuppressants place additional demands on the body. The NHS advises people who have had a liver transplant to avoid alcohol, and most transplant programs give the same guidance, permanently for anyone whose liver failure was related to alcohol and as a strong recommendation for others.

What actually happens depends on amount and pattern. A single drink does not destroy a graft, and recipients who slip should tell their team rather than hide it. Regular drinking, however, raises several specific risks. It can accelerate scarring in the new liver, particularly in people whose original disease was alcohol-related, where recurrence of alcohol-related liver disease in the graft is a recognized problem. It interacts with immunosuppressants and other medicines processed by the liver, potentially altering blood levels in unpredictable ways. It impairs judgment around medication adherence, and missed immunosuppressant doses are one of the leading preventable causes of rejection. Heavy drinking also worsens the blood pressure, blood sugar and bone density problems that these medicines already cause.

For recipients transplanted for alcohol-related disease, most programs require a documented period of abstinence before listing and offer ongoing support afterward, because the medical and psychological work of staying alcohol-free continues long after surgery. Relapse is treated as a medical issue requiring help, not a moral failure, though it can affect eligibility for future treatment.

The practical conclusion is simple even if the underlying reasons are complex: the safest amount of alcohol after a liver transplant is none, and any exception should come from the transplant team, not from a general rule found online.

What people often get wrong about living liver donation

Some myths are harmless. Others stop suitable donors from coming forward or push families toward decisions they later regret. These are the ones transplant teams hear most.

“The donor has to be a blood relative.” Covered above, but worth repeating: blood-type compatibility and healthy anatomy matter, genetic relationship does not. Spouses and friends donate routinely.

“They only take a small piece.” For adult recipients, more than half the donor’s liver is usually removed. It regrows, but the operation is major surgery, not a minor procedure.

“The liver grows back in a few weeks, so the donor is fine in a few weeks.” Regrowth of liver mass and recovery of the whole person are different timelines. The liver may approach normal size within a few months, according to Mayo Clinic; the abdominal wall, energy levels and emotional state take their own time, commonly six to eight weeks before normal activity and longer before heavy exertion.

“Donating will damage my health long term.” Most donors return to full health with no restrictions. That said, the risk is not zero, and honest programs say so. Both statements are true at once.

“The recipient’s liver disease will come back in the new liver, so why bother.” Some conditions can recur, particularly certain autoimmune and viral diseases and alcohol-related disease if drinking resumes. Many do not, and recurrence, when it happens, is often slower and more manageable than the original illness. This is a discussion for the hepatologist, not a reason to dismiss transplant.

“Once you have a transplant you can eat and drink normally.” Diet is largely normal; alcohol is not. Immunosuppressants also require food-safety caution, because a weakened immune system handles contaminated food poorly, and certain fruits such as grapefruit can alter medicine levels. The team’s dietitian will explain the specifics.

“A living donor transplant is guaranteed to work.” No transplant is guaranteed. Living donation improves timing and organ quality; it does not eliminate rejection, infection or surgical complications.

Questions to ask your care team

Write these down before the consultation. Good transplant teams expect them and answer them directly; hesitation is itself information.

For the potential donor:

• Which portion of my liver would you plan to remove, and what percentage of my total liver volume does that represent?
• What are this program’s own donor complication rates, including bile leaks, reoperations and any deaths, and how do they compare with national registry data?
• Who is my independent donor advocate, and how do I reach them privately?
• What happens to my care and follow-up if I am declined, or if I withdraw?
• How long should I plan to be away from work, and what support exists for lost income and travel during evaluation and recovery?
• What follow-up tests will I need, and for how many years?
• If I have a genetic link to the recipient, have I been screened for the same condition?

For the recipient:

• Am I currently a candidate for transplant on medical grounds, separate from whether a donor is available?
• Would a living donor change my expected timing meaningfully compared with the waiting list, given my current score?
• Is my original disease one that can recur in a new liver, and how would you monitor for it?
• What immunosuppressant plan do you anticipate, and what side effects should I expect in the first year?
• What would make you cancel or postpone the operation on the day?
• Who do I call, at any hour, if something feels wrong after discharge?

For both:

• Can we speak with a previous donor and recipient from this program?
• What would you advise a member of your own family in our situation?

The last question is not rhetorical. Experienced clinicians usually have a considered answer, and hearing it often clarifies what the family already suspects.

When to call your doctor after living donor liver transplant

Both donor and recipient leave hospital with a direct number for the transplant team. Use it. Teams would rather hear about ten false alarms than miss one early complication, because most problems after liver surgery are far easier to treat when caught in the first hours.

Call the transplant team the same day, or go to an emergency department, for any of the following:

• Fever or shaking chills, which can signal infection or, in the recipient, early rejection.
• New or worsening yellowing of the skin or eyes, dark urine or pale, clay-colored stools, which suggest bile is not draining properly.
• Increasing abdominal pain, a rapidly swelling belly, or pain that no longer responds to prescribed medicine.
• Redness, warmth, opening or discharge from the incision.
• Persistent vomiting or inability to keep down fluids or, for the recipient, immunosuppressant medicines.
• Confusion, unusual drowsiness or difficulty staying awake, which in a recipient can indicate the liver is not clearing toxins.
• Shortness of breath, chest pain, or a swollen, painful calf, which may indicate a blood clot.
• Black or bloody stools, or vomiting blood.
• Any missed immunosuppressant dose, so the team can advise rather than the recipient guessing.

Call within a day or two for milder concerns: fatigue that is worsening rather than improving, appetite that has not returned after the first couple of weeks, low mood that is interfering with daily life, or new medicines prescribed by another clinician that the transplant team has not reviewed.

Emergency services should be called immediately for collapse, severe breathing difficulty, heavy bleeding or chest pain. Tell the responders about the transplant or donation so the receiving hospital can contact the transplant program.

Nothing in this article replaces those instructions. The treating team knows the specific operation, the specific anatomy and the specific medicines involved, and every decision about care rests with them.

Frequently asked questions

What is the survival rate for living liver donors?

Death after living liver donation is extremely rare but has occurred, and no reputable program describes the risk as zero. Right-lobe donation for an adult recipient carries more risk than left-sided or pediatric segment donation because more tissue is removed. Rather than rely on a single figure found online, ask your transplant program for its own donor complication and mortality data and how they compare with national registry results.

How much liver is removed from a donor?

It depends on the recipient. For an adult, the right lobe is usually removed, which Mayo Clinic describes as roughly 60 percent of the donor’s liver. A smaller adult may receive the left lobe instead, and a child typically needs only the left lateral segment, a considerably smaller portion. Imaging measures the exact volumes before surgery so that both the donated piece and the remaining liver are within safe limits.

How long is liver donor recovery time?

Most donors stay in hospital about a week, according to Johns Hopkins Medicine, and return to desk work and normal daily activities within roughly six to eight weeks. Heavy lifting and strenuous exercise are restricted for longer while the abdominal wall heals. Fatigue is the most common lingering complaint and usually eases gradually. The liver itself regrows to near-normal size within a few months, with follow-up blood tests tracking function.

What can't you do after donating a liver?

Long-term, very little. Once recovered, most donors have no medical restrictions on exercise, work, travel, diet or pregnancy. In the first weeks, heavy lifting, driving while on pain medicine, strenuous activity and alcohol are restricted, and new over-the-counter medicines should be checked with the team. Donors cannot donate liver tissue again, and some notice looser stools after fatty meals following gallbladder removal.

What are the living liver donor requirements?

Donors are typically adults between 18 and about 60, in good physical and mental health, with a compatible blood type and no significant liver disease, active cancer or serious heart, lung or kidney conditions, according to Mayo Clinic. A healthy body weight matters because fat in the liver reduces its resilience. Imaging must show blood vessel and bile duct anatomy that allows a safe division, and the donation must be freely chosen without payment or pressure.

Does a living liver donor have to be a relative?

No. Because the liver does not require close tissue matching, blood-type compatibility and healthy anatomy are what count. Spouses, friends, coworkers and non-directed donors who give to a stranger are all accepted in many programs. Relatives are more likely to share a blood group and live nearby, but they may also carry an inherited liver condition, which the evaluation specifically screens for.

What happens if you drink alcohol after a liver transplant?

The NHS advises liver transplant recipients to avoid alcohol. Regular drinking can accelerate scarring in the new liver, interacts with immunosuppressant medicines processed by the liver, and can lead to missed doses that raise rejection risk. For people transplanted for alcohol-related disease, a return to drinking can cause the disease to recur in the graft. Anyone who slips should tell their team promptly rather than hide it.

How does liver regeneration after donation actually work?

When a large portion is removed, changes in blood flow and gut signals trigger the remaining liver cells, called hepatocytes, to divide. This is genuine functional tissue, not scar. The organ regains mass rather than its original shape, so the remaining part enlarges to fill the space. Mayo Clinic describes both the donor’s remnant and the recipient’s graft approaching normal volume within a few months of surgery.

How is a living donor vs deceased donor liver transplant different for the recipient?

A living donor transplant is scheduled while the recipient is relatively stable, uses a portion of liver that spends very little time outside the body, and can shorten the wait. A deceased donor transplant usually provides a whole liver but arrives unpredictably. Partial grafts involve smaller vessel and bile duct connections, so bile duct complications are more frequent. The transplant team weighs these factors for each person.

Can a child receive part of a parent's liver?

Yes. Children with conditions such as biliary atresia, where the bile ducts are blocked or absent from birth, are often good candidates for a small segment from an adult donor, most commonly a parent. The left lateral segment removed for a child is a smaller portion than an adult right lobe, which lowers donor risk. Blood-type compatibility, donor health and anatomy are assessed the same way as for adult recipients.

References

• NHS: Liver transplant, what happens
• NHS: Liver transplant, recovery
• NIH NIDDK: Liver Transplant
• MedlinePlus: Liver transplant

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.