After DBS for Tremor: Wound Care, Device Programming and the Gradual Adjustment Period

The first morning home, a retired schoolteacher tried to pour her coffee with the hand that had shaken for twenty years. It barely trembled. She had not been to a single programming appointment yet, and the device in her chest was still switched off. Her neurologist had warned her this might happen, and had also warned her that it would probably not last.

That small scene captures the strange arc of dbs for tremor recovery. It is not one recovery but three overlapping ones: a wound that needs to heal, a device that needs to be tuned, and a nervous system that needs time to settle into a new normal. Each runs on its own clock.

This explainer walks through what usually happens in those weeks and months, what the evidence actually supports, and where the honest answer is still “it depends on you, and your team will decide together.”

What actually happens during DBS for tremor, and how long does the surgery take?

Deep brain stimulation (DBS) is a procedure in which a thin electrode, called a lead, is placed into a precise spot deep in the brain and connected to a small battery-powered generator implanted under the skin of the chest. The generator sends continuous, adjustable electrical pulses that interrupt the abnormal signalling driving the tremor.

For essential tremor, the usual target is the ventral intermediate nucleus of the thalamus, a relay station the size of a small bean that helps coordinate movement. Surgeons often shorten this to “VIM.” Parkinson’s tremor may be treated at the same target or at others, such as the subthalamic nucleus.

The operation usually runs in two parts. In the first, the lead is guided into place using a frame or frameless navigation system, high-resolution MRI, and in many centers, live recordings of brain cell activity to confirm the location. Some people are awake for part of this stage so the team can test the effect on the tremor in real time; others have it done under general anesthesia with image guidance alone. In the second part, done the same day or a week or so later, the generator is implanted and connected by an extension wire tunneled under the skin of the neck.

People often ask how long the surgery is. There is no single number. Lead placement typically takes several hours, and the total time depends on whether one or both sides of the brain are treated and whether the generator is placed in the same session. Mayo Clinic and Johns Hopkins both describe DBS as a multi-hour procedure, sometimes staged across two days, with most people spending one or a few nights in hospital afterwards.

Who is usually offered DBS for tremor, and who is asked to wait?

DBS is not a first step. Guideline-level guidance from the NHS, Mayo Clinic and Cleveland Clinic describes it as an option for people whose tremor remains disabling despite adequate trials of medicines, typically beta blockers or certain anti-seizure drugs used for essential tremor, or levodopa-based regimens for Parkinson’s disease. “Disabling” is the operative word: the tremor has to interfere with eating, writing, dressing or working in ways that matter to the person.

Candidates are usually evaluated by a multidisciplinary team that includes a movement disorder neurologist, a functional neurosurgeon, and often a neuropsychologist. The workup checks that the diagnosis is right (essential tremor and Parkinson’s tremor respond differently), that thinking and memory are robust enough to tolerate surgery and cope with programming, and that the person understands DBS is a treatment to manage tremor, not to remove the underlying condition.

People are commonly asked to wait, or steered toward other options, when:

• medicines have not yet been tried at adequate levels, or the tremor is mild enough that side effects of surgery would outweigh benefit;
• significant memory or thinking problems are present, since surgery can worsen them;
• untreated depression or anxiety would make the adjustment period harder;
• medical conditions raise bleeding or anesthesia risk, such as poorly controlled blood pressure or the need for blood thinners that cannot be paused;
• brain imaging shows changes that would make lead placement unsafe.

Alternatives discussed at this stage include focused ultrasound thalamotomy, a non-incision procedure that creates a small permanent lesion in the same target, and continued medical management. Each has trade-offs; DBS is adjustable and reversible, while lesioning is a one-time change. Whether to proceed, and which route, is the treating team’s call made with the patient.

DBS for tremor recovery: what the first days after surgery look like

The immediate aftermath is more ordinary than most people expect. Headache is common for a few days and usually responds to the pain relief the team prescribes. Some soreness at the chest site, a feeling of tightness along the neck where the extension wire runs, and mild swelling around the scalp incisions are all expected. Fatigue can be striking; the brain has been through a lot even when the person feels alert.

Most people are up and walking within a day. Mayo Clinic describes a hospital stay of roughly one to a few nights for lead placement, sometimes shorter when the generator is placed separately. Before discharge, the team typically repeats brain imaging to confirm lead position and check for any bleeding.

Temporary confusion or a “foggy” feeling can occur in the first days, particularly in older adults. It is usually short-lived but worth mentioning at follow-up. Vivid dreams, disturbed sleep and mood swings are also reported; anesthesia, steroids given to reduce swelling, and the emotional weight of the event all play a part.

Activity advice in the first two weeks usually boils down to: walk, rest, avoid bending or straining, and do not lift anything heavier than a light grocery bag. Driving is generally paused until the surgeon clears it. Pre-existing tremor or Parkinson’s medicines are typically continued unchanged at this stage; any adjustment is made later, by the prescribing clinician, once stimulation is dialed in.

One thing that surprises people is that the device is usually left off. Swelling around the new lead changes how the brain responds to current, so programming done too early would need redoing. The waiting is deliberate.

DBS incision healing: how to care for the wounds on your head and chest

There are usually three incision sites: one or two on the scalp where the leads enter, a small one behind the ear or on the side of the neck where the extension wire connects, and one below the collarbone over the generator. Each behaves a little differently.

Scalp wounds sit over bone and heal quickly but are exposed to hair, sweat and pillows. Chest wounds sit over the generator pocket, where fluid can collect and where movement of the arm tugs at the skin. General wound-care guidance from Cleveland Clinic and MedlinePlus applies: keep the sites clean and dry for the first few days, follow the team’s specific instructions about when showering and gentle hair washing are allowed, and avoid soaking in baths, pools or hot tubs until fully healed. Sutures or staples are typically removed within the first couple of weeks on a schedule the surgical team sets; some surgeons use dissolvable stitches or skin glue instead.

Small bruising around the chest pocket is common. A firm, non-tender swelling that shrinks over weeks is also common. What is not expected: increasing redness spreading beyond the wound edges, warmth, thick drainage, a wound that pulls apart, or fever. Hardware infection is one of the more serious complications of DBS because the implanted components can act as a surface for bacteria to cling to, and treating it sometimes means removing part of the system. Early reporting matters.

Scalp wounds deserve extra attention in the first weeks: no hair dye, no tight hats over the incision, no scratching. If the connector behind the ear feels like a small bump under the skin, that is normal anatomy of the device, not a problem. The team will usually check all sites at the first post-operative visit and again at switch-on.

What is the microlesion effect, and why does the tremor come back before programming?

Return to the schoolteacher pouring her coffee. Her steady hand had a name: the microlesion effect. Passing a lead through brain tissue causes a tiny amount of local swelling and disruption, and in the thalamus that disruption temporarily quiets the tremor circuit. The effect can appear within hours of surgery, before any current is delivered.

It is real, it can be dramatic, and it fades. Over the following days to weeks, as the swelling settles, the tremor typically returns toward its previous level. For someone who does not know this is coming, the return can feel like the surgery has failed. It has not. It means the brain is healing exactly as expected, and the stage is now set for the device to do the work.

Clinicians actually welcome the microlesion effect as a signal. A strong early response suggests the lead is sitting close to the right spot, since the same tissue that quiets when nudged mechanically is the tissue that will respond to stimulation. Its absence does not mean the lead is misplaced; some people simply swell less.

The practical lesson is to resist drawing conclusions from the first two weeks in either direction. A steady hand in week one is not the final result, and a shaking hand in week three is not the final result either. Programming, not surgery alone, determines where things land.

This is also why the team asks people to hold off on major life changes, such as stopping tremor medicines on their own, during this window. The prescribing clinician will revisit medicines once the stimulation settings are stable, which usually takes months.

DBS programming for essential tremor: what happens at the first switch-on

Programming is the process of choosing which contacts on the lead deliver current, how strong the pulses are, how wide each pulse is, and how many pulses arrive per second. Cleveland Clinic describes the first programming session as typically taking place a few weeks after surgery, commonly two to four, once swelling has settled enough for the response to be reliable.

The first visit is often the longest, sometimes an hour or two. The programmer, usually a neurologist or specialist nurse, connects a handheld device to the generator through the skin. Each contact on the lead is tested in turn, gradually raising the intensity while watching the hands, listening to speech, and asking about sensations. The goal is to map two thresholds for each contact: the level at which tremor improves, and the level at which side effects appear. The sweet spot is the widest gap between them.

People usually feel something during this mapping. Tingling in the fingers, lips or face is the most common sensation, and it often fades within seconds. Brief muscle pulling, a feeling of the room tilting, or slurred words tell the programmer that current is spreading to neighboring structures, and the setting is backed off.

Most people leave the first session with a modest starting setting rather than the strongest one that worked in the room. This is intentional. Effects that look fine for ten minutes in clinic can accumulate over days, particularly on speech and balance. A conservative start leaves room to adjust.

The generator stays on continuously. A small patient controller allows the person to check battery status and, depending on how the team configures it, to switch between a few pre-set programs or make limited adjustments within bounds the clinician sets.

Why programming takes months, not one visit

The most common frustration in the adjustment period is the gap between expectation and pace. People imagine a switch; the reality is closer to tuning an instrument that changes shape as you play it.

Several things drive the slow timeline. The brain adapts to stimulation, so a setting that controls tremor well in month one may need modest change by month three. Side effects on speech and balance can emerge gradually rather than immediately. Everyday demands, such as handwriting versus lifting a glass, may call for different compromises. Mayo Clinic and Cleveland Clinic both describe programming as a process spread over several visits and several months rather than a single appointment.

A typical rhythm is visits every few weeks early on, stretching to a few months apart as settings stabilize, then routine checks once or twice a year. Between visits, the team often asks for a simple diary: when the tremor is worse, what activities are hardest, whether speech feels different by evening, whether sleep or mood has shifted.

For Parkinson’s disease specifically, programming and medicine adjustment happen in tandem, and the prescribing clinician may gradually change medicines as stimulation takes over some of the work. For essential tremor, medicine changes are also common once settings are stable, but these are the prescriber’s decisions, made with the patient, never self-directed.

The adjustment period is also emotional. Some people feel deflated when the first setting is less impressive than the microlesion honeymoon. Others feel unexpectedly grief-stricken about the years spent adapting to tremor. Neither reaction is unusual, and the care team, including a psychologist where available, is the right place to raise it.

Side effects of stimulation: tingling, slurred speech and balance

Stimulation side effects are distinct from surgical complications. They come from current spreading beyond the intended target, and the defining feature is that they are adjustable: change the setting and they change too.

The thalamic target sits close to fibers carrying sensation to the face and hand and near pathways controlling speech and coordination. Predictably, the most reported effects are tingling or numbness (usually brief), slurred or slower speech, a sense of imbalance when walking, and occasionally mild incoordination of the stimulated hand. Mayo Clinic and Johns Hopkins list these among the expected trade-offs, most prominent when both sides of the brain are stimulated.

A few patterns are worth knowing:

• Effects that appear the moment a setting is raised and vanish when it is lowered are almost always stimulation-related, not neurological damage.
• Speech and gait effects can be subtle at first and become obvious over days, which is why programmers start conservatively.
• Some people with essential tremor experience gradual loss of benefit over years, sometimes called habituation. Adjusting settings can help; occasionally the team will suggest brief stimulation holidays.

Less common effects include mood changes, apathy or, rarely, changes in impulse control, more often described with the subthalamic target used in Parkinson’s disease than with thalamic stimulation for essential tremor. Any new mood or behavior change should be reported, because it is often addressable.

The honest framing is that DBS trades one set of limitations for another, smaller set. For most people who are well selected, the trade is worth it; for a minority, the balance is harder to strike. Programming is where that balance is negotiated, and it takes time.

What are the risks of brain bleeds and infection after DBS surgery?

Because DBS involves passing a lead through brain tissue, bleeding is the complication people worry about most. Mayo Clinic lists bleeding in the brain, stroke, infection, breathing problems, seizure, and temporary confusion among the surgical risks. Published series consistently describe symptomatic brain bleeding as uncommon, but not zero, and its likelihood rises with age, high blood pressure, and blood-thinning medicines that cannot be safely paused. Your surgeon will have their own center’s figures and should share them plainly.

Most bleeds that do occur are small and detected on the routine imaging performed after lead placement. Many cause no lasting symptoms. A minority cause weakness, speech difficulty or altered consciousness and need urgent treatment. The window of highest risk is the first day or two, which is one reason for the hospital stay and repeat scan.

Infection is the other headline risk and can present later, sometimes weeks after surgery. Because the system includes foreign material, infections can be difficult to clear with antibiotics alone, and partial or complete removal of hardware is sometimes required, followed by re-implantation months later. This is why wound care and prompt reporting of redness, drainage or fever carry real weight.

Other hardware problems are mechanical rather than biological: lead fracture, wire migration, skin erosion over the generator or connector, and generator failure. These are uncommon and generally fixable with revision surgery.

Neutral clinical language matters here. DBS is elective surgery with a modest but real risk of serious harm, weighed against a disabling condition that medicines have failed to control. Whether that balance favors surgery is a judgment the person and the treating team make together, ideally with time, written information, and the chance to ask hard questions.

Deep brain stimulation aftercare: magnets, MRI, airport scanners and everyday devices

Living with an implanted generator comes with a short list of practical rules. Most are minor once they become habit.

Strong magnets can switch some generators on or off or alter settings. The main culprits are large speakers, magnetic mattress pads, induction cooktops used at very close range, and industrial equipment. Household appliances, mobile phones, microwaves and computers are not a problem in normal use. Airport security scanners and shop theft-detection gates are generally safe to pass through at a steady walk, but lingering near them is discouraged; carrying the device identification card allows a hand search instead. MedlinePlus and Cleveland Clinic both advise carrying this card at all times.

MRI is the most important medical consideration. Many modern systems are MRI-conditional, meaning scans are possible under specific conditions, but only when the scanning team knows the exact device, checks its settings, and follows the manufacturer’s protocol. Never assume a scan is safe; tell every clinician, radiographer and dentist about the implant before any procedure. Diathermy, a deep-heat therapy sometimes used in physiotherapy, is contraindicated because it can heat the leads and damage brain tissue.

Everyday movement is unrestricted once healing is complete. Swimming, gardening, travel and exercise are all compatible with DBS. Contact sports and activities with a high risk of blows to the head or chest are worth discussing individually.

Battery life depends on the generator type and settings. MedlinePlus notes that non-rechargeable generators typically need replacing every 3–5 years in a short outpatient procedure; Cleveland Clinic describes rechargeable systems lasting considerably longer, though they require regular home charging. The patient controller shows battery status, and the team will schedule replacement before the battery runs down, since a depleted generator means the tremor returns.

What does DBS for tremor recovery look like at six months and beyond?

By six months most people have settled settings, healed wounds, and a reasonably clear sense of what the device can and cannot do for them. The table below summarizes typical phases, drawn from Mayo Clinic, Cleveland Clinic and MedlinePlus descriptions. Every timeline is a range, and individual experience varies.

Phase	Typical timing	What usually happens
Hospital stay	Roughly 1 to a few nights	Post-operative imaging, pain control, early walking, device left off
Early healing	First 2 weeks	Wound care, activity limits, possible microlesion effect, stitches or staples removed
Switch-on	Commonly 2–4 weeks after surgery	First programming session, conservative initial settings
Active programming	Months 1 to 6	Several visits, settings refined, medicines reviewed by prescriber
Maintenance	Beyond 6 months	Routine checks, battery monitoring, occasional re-tuning
Battery replacement	Every 3–5 years (non-rechargeable)	Short outpatient procedure; rechargeable systems last longer

Beyond the first year, the main tasks are staying connected with the movement disorder team, keeping the identification card handy, and watching for gradual drift in benefit. For essential tremor, long-term studies describe good tremor control persisting for many years in most people, with some loss of effect over time in a proportion of them, often addressable by adjustment. For Parkinson’s disease, the tremor and stiffness that responded at the start generally keep responding, while symptoms that never responded, such as balance and thinking changes, continue their natural course.

Life after DBS surgery is therefore best understood as a managed condition with a powerful new tool, not an ending. People who do best tend to be those who keep their appointments, report changes early, and accept that a small amount of re-tuning is part of the deal.

Is chocolate bad for essential tremor? Caffeine, alcohol and daily habits

This question turns up constantly in searches, and the answer is more nuanced than a yes or no. The NHS and Mayo Clinic list caffeine among the everyday factors that can make tremor more noticeable, alongside stress, fatigue, cold, and certain medicines. Chocolate contains caffeine and a related stimulant called theobromine, but in far smaller amounts than coffee or energy drinks: a typical serving of dark chocolate has a fraction of the caffeine in a cup of coffee, and milk chocolate less still.

There is no good evidence that chocolate as a food worsens essential tremor in most people. What the evidence does support is individual sensitivity: some people notice their hands are worse after any stimulant, others notice nothing. The practical advice is to observe your own pattern rather than cut out foods on principle. If a late-evening square of dark chocolate coincides with a shakier hand, the link is worth testing; if not, there is no medical reason to avoid it.

Alcohol is a different story and cuts both ways. Small amounts often reduce essential tremor temporarily, an effect so consistent that clinicians sometimes use it as a diagnostic clue. The improvement wears off within hours and is frequently followed by rebound worsening. Using alcohol to manage tremor carries obvious risks and is not recommended by any guideline. After DBS, alcohol also interacts with the sedative side of some tremor medicines, so the prescribing clinician’s advice takes precedence.

Other daily habits matter more than any single food: regular sleep, because fatigue amplifies tremor; stress management, because adrenaline does the same; and staying warm, since cold muscles shake more. None of these replace stimulation or medicine, but they influence how much the residual tremor intrudes on daily life.

What people often get wrong about life after DBS surgery

Misunderstandings cluster around a handful of themes, and correcting them early makes the adjustment period smoother.

“The surgery fixes the tremor.” Surgery places the hardware; programming provides the benefit. The steady hand some people notice in week one is the temporary microlesion effect. The real result emerges over months.

“If it works, I can stop my medicines.” Some people do reduce tremor medicines after DBS, and headlines often emphasize this. Whether and how that happens is a decision for the prescribing clinician, made gradually once settings are stable. Stopping abruptly can cause withdrawal effects and rebound tremor.

“DBS treats everything about my condition.” For essential tremor, DBS targets tremor, usually of the arm and hand; head and voice tremor respond less predictably. For Parkinson’s disease, DBS helps tremor, stiffness and medicine-related fluctuations but does not help balance, freezing, speech volume or thinking, and the disease continues to progress.

“Side effects mean something went wrong.” Tingling, slurred speech or unsteadiness that appear with a setting change are the programmer’s road signs, not evidence of damage. They are managed by adjustment.

“I can never have an MRI again.” Many current systems are MRI-conditional. The correct statement is that scanning requires the right protocol and a team that knows the device.

“The battery lasts forever.” Non-rechargeable generators need replacement on a cycle of a few years; rechargeable ones need regular home charging. Either way, the device requires lifelong follow-up.

“Once programmed, I am done.” Benefit can drift over years, and settings sometimes need re-tuning. Staying in touch with the movement disorder team is part of the treatment, not an optional extra.

Questions to ask your care team

Good decisions come from good questions, and the weeks before and after surgery are the right time to ask them. Write the answers down; the volume of information is hard to hold in memory.

Before surgery:

• Which target will you use for my tremor, and why that one?
• Will I be awake for lead placement, and what will that feel like?
• Will the lead and generator be placed on the same day or in two stages?
• What are your center’s own rates of bleeding, infection and hardware problems?
• How do you decide between DBS and focused ultrasound for someone like me?
• Which of my current medicines should I pause, and who will tell me when to restart them?

In the recovery and programming period:

• When may I wash my hair, shower, drive, and return to work or exercise?
• When is my first programming visit, and how many visits should I expect in the first six months?
• What should I record in a symptom diary between visits?
• Which changes should I phone about the same day, and which can wait for the next appointment?
• What can I adjust myself with the patient controller, and what should I leave alone?
• Who reviews my tremor or Parkinson’s medicines, and when?

For the long term:

• Is my generator rechargeable, and what is the expected replacement interval?
• Is my system MRI-conditional, and what paperwork should I carry?
• What activities or equipment should I avoid?
• If benefit fades over the years, what are the options?

The answers will differ from person to person, and that is the point. A team that welcomes these questions is a team that understands the adjustment period is shared work.

When to call your doctor

Most of dbs for tremor recovery is uneventful, but a few signs need prompt attention. Contact the surgical or neurology team the same day, or seek emergency care, for any of the following:

• sudden weakness or numbness on one side of the body, drooping of the face, trouble speaking or understanding speech, severe or rapidly worsening headache, or a seizure, which can signal bleeding in the brain and are emergencies;
• new confusion, unusual drowsiness or difficulty staying awake;
• fever, chills, or spreading redness, warmth, swelling or thick drainage at any incision, or a wound that opens, which may indicate infection of the hardware;
• skin over the generator, connector or wire that becomes thin, shiny, tender or breaks down;
• a sudden return of tremor with a device that appears to be off, or a controller warning about low battery or system error;
• new or worsening slurred speech, unsteadiness, falls, or persistent tingling after a programming change;
• marked changes in mood, thinking or behavior, including new low mood, agitation or thoughts of self-harm.

For anything less urgent, such as mild swelling, brief tingling, or uncertainty about an activity, a routine call to the team is appropriate. Keep the device identification card and the clinic’s phone number in a wallet or phone case; emergency staff need to know a stimulator is in place before any imaging or treatment.

None of this is intended to alarm. Serious complications are uncommon, and most people move through recovery with only the expected aches and the slow satisfaction of watching settings improve. The purpose of knowing the red flags is simply that early reporting leads to easier fixes, and that decision, like every decision in this process, sits with you and your treating team together.

Frequently asked questions

What should I expect after DBS surgery?

Expect headache, fatigue and soreness at the scalp and chest sites for a few days, with the device usually left off for the first few weeks. Some people notice a temporary improvement in tremor from the surgery itself, which fades. The first programming visit typically happens two to four weeks later, followed by several adjustment visits over months. Wounds heal over the first couple of weeks with activity limits on lifting and straining.

How long is DBS surgery?

Lead placement typically takes several hours, and the whole process is often longer when both sides of the brain are treated or the generator is implanted in the same session. Some centers stage the operation across two days. Most people spend one or a few nights in hospital. Your surgeon can give a more specific estimate based on the planned approach and whether you will be awake for part of it.

What are the risks of brain bleeds after DBS surgery?

Bleeding in the brain is an uncommon but recognized risk of passing a lead through brain tissue. Risk rises with age, high blood pressure and blood-thinning medicines. Most bleeds that occur are small and found on routine post-operative imaging without lasting symptoms; a minority cause weakness, speech difficulty or altered consciousness and need urgent treatment. Ask your surgeon for their own center’s figures rather than relying on general averages.

Is chocolate bad for essential tremor?

Not for most people. Caffeine can make tremor more noticeable, and chocolate contains small amounts of caffeine and a related stimulant, but far less than coffee or energy drinks. There is no good evidence that chocolate as a food worsens essential tremor. Individual sensitivity varies, so notice your own pattern. Sleep, stress and cold usually influence tremor far more than any single food.

How long does deep brain stimulation aftercare last?

Aftercare is lifelong in a light-touch way. Intensive programming usually spans the first six months, after which visits stretch to once or twice a year. Batteries need monitoring and replacement or recharging, settings may need occasional re-tuning as benefit drifts, and every clinician you see should be told about the implant before imaging or procedures. Carrying the device identification card becomes a permanent habit.

When does DBS programming for essential tremor start?

Commonly two to four weeks after surgery, once swelling around the lead has settled enough for the response to stimulation to be reliable. The first session is often the longest, sometimes an hour or two, and ends with a conservative starting setting. Further visits every few weeks refine the settings, balancing tremor control against effects on speech and balance.

How long does DBS incision healing take?

Scalp and chest incisions usually heal over the first couple of weeks, with sutures or staples removed on the surgical team’s schedule if they are not dissolvable. Keep sites clean and dry initially, follow specific instructions on showering and hair washing, and avoid soaking in baths or pools until healed. Firm swelling over the generator that shrinks over weeks is normal; spreading redness, drainage or fever is not.

Can I stop my tremor medicines after DBS?

Only if and when your prescribing clinician advises it. Some people do reduce tremor or Parkinson’s medicines after DBS, but this happens gradually once stimulation settings are stable, usually months after surgery. Stopping abruptly can cause withdrawal effects and rebound tremor. Medicine changes are part of the programming conversation, not a decision to make alone.

What does life after DBS surgery involve day to day?

Once healed, most activities including swimming, travel and exercise are unrestricted. Daily life includes carrying the device card, avoiding strong magnets and diathermy, telling clinicians about the implant before any procedure or MRI, and charging the generator if it is rechargeable. Tremor usually remains partly present, and settings may need occasional adjustment. Regular follow-up with the movement disorder team continues indefinitely.

Why has my tremor come back a few weeks after DBS surgery?

Most often because the temporary microlesion effect from lead placement has worn off and the device has not yet been programmed. This is expected and does not mean the surgery failed. If the device is already on and tremor returns suddenly, check the controller for a low battery or error message and contact the team, since settings may need adjustment or the system may need checking.

References

• Cleveland Clinic: Deep Brain Stimulation (DBS)
• MedlinePlus: Deep brain stimulation
• NHS: Tremor or shaking hands

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.