Transverse Myelitis

What is transverse myelitis?

Transverse myelitis is a rare condition in which the spinal cord becomes inflamed. The spinal cord is the thick bundle of nerves that runs from the base of the brain down the back, inside the bones of the spine. It carries signals between the brain and the rest of the body, including signals for movement, sensation (feeling), and the control of the bladder and bowel. When a section of the spinal cord becomes inflamed, these signals can be slowed, distorted, or blocked.

The word myelitis means inflammation of the spinal cord. The word transverse describes the way symptoms often appear across both sides of the body at the same level, like a band around the trunk. In many cases, inflammation affects the protective coating around nerve fibers, called myelin. Damage to myelin is called demyelination, and it interferes with the way nerves conduct electrical messages.

Transverse myelitis can affect people of any age, including children, although it is seen more often in adults. It affects men and women. Symptoms usually develop over hours to days, and sometimes over a few weeks. Because it can look similar to several other spinal cord problems, it is usually assessed by a neurologist, a doctor who specializes in disorders of the brain, spinal cord, and nerves. In hospital groups such as Acibadem, this condition is managed within the neurology department, often working alongside rehabilitation teams.

Transverse myelitis symptoms

Transverse myelitis symptoms depend on which part of the spinal cord is inflamed and how much of its width is involved. The spinal cord is organized by level: the neck (cervical), the upper and middle back (thoracic), and the lower back (lumbar). Inflammation in the neck region can affect the arms as well as the legs, while inflammation in the middle back typically affects the trunk and legs.

Common symptoms include:

• Weakness in the legs or arms, which may range from mild heaviness to being unable to move a limb
• Numbness, tingling, burning, or coldness, often starting in the feet and moving upward
• A band-like feeling of tightness or pressure around the chest or abdomen
• Pain, often a sharp or aching pain in the back, neck, or limbs
• Bladder problems, such as difficulty passing urine, urgency, or loss of control
• Bowel problems, including constipation or loss of control
• Heightened sensitivity, where light touch or clothing feels painful
• Sexual dysfunction
• Muscle stiffness or spasms, especially as the condition evolves

Doctors often describe the timing of symptoms in stages. In the acute stage, symptoms appear and worsen, usually over hours to a few days. Pain is frequently one of the first signs, followed by changes in sensation and then weakness. Symptoms often reach their worst point within days to about three weeks. After that, a plateau may follow in which symptoms stop getting worse, and then a recovery stage begins. Recovery may start within weeks and can continue for many months.

Doctors also distinguish between two patterns. In complete transverse myelitis, the inflammation involves most of the width of the spinal cord and causes fairly symmetrical symptoms on both sides of the body. In partial transverse myelitis, only part of the cord’s width is affected, so symptoms may be uneven, for example more weakness in one leg than the other. Partial patterns are more often linked with certain underlying conditions, which is one reason careful diagnosis matters.

Causes and risk factors

Transverse myelitis causes are not always found. In a proportion of cases, no clear trigger is identified even after thorough testing, and the condition is then described as idiopathic, meaning of unknown cause. When a cause can be identified, it usually involves the immune system, the body’s defense system, mistakenly attacking the spinal cord.

Recognized causes and associations include:

• Multiple sclerosis (MS): a long-term condition in which the immune system damages myelin in the brain and spinal cord. An episode of partial transverse myelitis can be the first sign of MS in some people.
• Neuromyelitis optica spectrum disorder (NMOSD): an autoimmune condition that tends to cause long segments of spinal cord inflammation and inflammation of the optic nerve, the nerve that carries vision from the eye to the brain.
• MOG antibody-associated disease (MOGAD): another antibody-related condition that can inflame the spinal cord, optic nerve, or brain.
• Infections: viral, bacterial, or, rarely, fungal or parasitic infections can directly involve the spinal cord or trigger an immune reaction afterward. Examples reported include herpes viruses, enteroviruses, Lyme disease, syphilis, and others.
• Post-infectious immune reactions: in some people, symptoms begin days to weeks after a common illness such as a respiratory or stomach infection, even though the infection itself has cleared.
• Other autoimmune diseases: conditions such as lupus, Sjögren’s syndrome, sarcoidosis, and some vasculitis disorders (inflammation of blood vessels) can involve the spinal cord.
• Rarely, vaccination has been reported in temporal association, although this is very uncommon and a direct link is difficult to prove in individual cases.

There are no strong lifestyle risk factors for transverse myelitis. It is not caused by physical strain, diet, or stress, and it is not contagious. Factors that may raise the chance of an episode include having an existing autoimmune disease, a recent infection, or a family history of autoimmune conditions. Most people who develop transverse myelitis have no known risk factor beforehand, and it is not considered a hereditary condition in the usual sense.

Transverse myelitis diagnosis

Transverse myelitis diagnosis has two goals. The first is to confirm that the spinal cord is inflamed and to rule out other problems that can look similar, such as a slipped disc, a tumor, a blocked blood vessel in the spinal cord, or an abscess (a pocket of infection) pressing on the cord. Some of these conditions need very different and sometimes urgent treatment, so this step is not skipped. The second goal is to search for an underlying cause, because that shapes long-term care.

Steps commonly used include:

• Medical history and neurological examination: the doctor asks about the timeline of symptoms, recent illnesses, vision changes, and other health conditions, and then tests strength, reflexes, sensation, coordination, and walking to estimate which level of the spinal cord is affected.
• Magnetic resonance imaging (MRI): MRI uses magnets and radio waves to create detailed pictures of the spinal cord. It is the key imaging test. It can show areas of inflammation, and it can rule out compression from a disc, bone, or growth. A contrast dye may be given through a vein to highlight active inflammation. An MRI of the brain is often done as well to look for signs of MS or other conditions.
• Lumbar puncture (spinal tap): a thin needle is placed in the lower back to collect a small sample of cerebrospinal fluid, the clear fluid that surrounds the brain and spinal cord. Doctors look for increased white blood cells, protein, and markers of inflammation or infection.
• Blood tests: these may check for infections, vitamin deficiencies, markers of autoimmune disease, and specific antibodies, in particular aquaporin-4 antibodies (linked with NMOSD) and MOG antibodies (linked with MOGAD).
• Eye tests: because some related conditions involve the optic nerve, doctors may recommend a detailed eye examination or a test called optical coherence tomography, which images the nerve at the back of the eye.
• Additional imaging or tests in selected cases, such as a chest scan when sarcoidosis is suspected.

Specialists often follow published diagnostic criteria, which in broad terms require symptoms of spinal cord dysfunction on both sides of the body, a clear sensory level, evidence of inflammation on MRI or in spinal fluid, symptoms that progress over hours to weeks, and the exclusion of compression or other non-inflammatory causes. Not every result comes back quickly, and in some cases the final label changes over time as new information appears, for example if a later episode points to MS or NMOSD.

Transverse myelitis treatment options

Transverse myelitis treatment focuses on three things: reducing inflammation as early as possible, treating any identified cause, and managing symptoms while supporting recovery. Treatment is usually started in the hospital.

High-dose corticosteroids are the usual first treatment. Corticosteroids are anti-inflammatory medicines, typically given into a vein for several days, sometimes followed by a tapering course of tablets. They aim to calm the immune attack and limit damage. Side effects can include raised blood sugar, mood changes, trouble sleeping, and stomach irritation, and the care team monitors for these.

Plasma exchange (plasmapheresis) may be considered when symptoms are severe or do not improve with steroids. In this procedure, blood is drawn from the body, the liquid part (plasma) that contains antibodies is separated and removed, and the blood cells are returned with replacement fluid. It is done over several sessions. Intravenous immunoglobulin, a preparation of antibodies from donated blood, is used in some situations as an alternative.

Treating the underlying cause is important when one is found. Antiviral or antibiotic medicines are used if an active infection is identified. If tests point to MS, NMOSD, MOGAD, or another autoimmune disease, longer-term medicines that modify the immune system may be recommended to reduce the chance of future attacks. The choice depends on the specific diagnosis, and the balance of benefits and risks is discussed individually.

Surgery is not a treatment for transverse myelitis itself, because the problem is inflammation rather than pressure. Surgery becomes relevant only if testing reveals a different cause, such as a tumor or abscess compressing the cord.

Symptom management begins early and continues after discharge. It may include:

• Medicines for nerve pain, such as certain anticonvulsant or antidepressant drugs that also calm nerve signals
• Medicines to relax stiff or spasming muscles
• Bladder management, which can include timed voiding, medicines, or catheters (thin tubes that drain urine)
• Bowel programs to manage constipation or incontinence
• Measures to prevent complications of reduced mobility, such as blood clots, pressure sores, and lung infections

Rehabilitation is a central part of care. Physical therapy works on strength, balance, and walking, and may involve braces or walking aids. Occupational therapy helps with everyday activities such as dressing, bathing, and returning to work. Some people also benefit from psychological support, because a sudden loss of function can be distressing. Rehabilitation often begins in the hospital and continues as an outpatient for months.

Living with transverse myelitis and outlook

Recovery from transverse myelitis varies widely from person to person, and doctors cannot predict it precisely at the start. Broadly, people fall into three groups: those who recover most or all of their function, those who are left with moderate lasting problems such as an altered gait, bladder issues, or ongoing nerve pain, and those who have significant permanent disability. Recovery, when it occurs, usually begins within weeks to a few months and can continue for up to two years or longer.

Certain features are generally associated with a less favorable outlook, including very rapid onset over a few hours, severe weakness at the worst point, and back pain at the beginning. A gradual onset and early signs of improvement are often, though not always, associated with better recovery. These are patterns seen across groups of patients and do not determine any one person’s course.

For most people with idiopathic transverse myelitis, the episode happens only once. Recurrence is more likely when there is an underlying condition such as NMOSD, MOGAD, or MS, which is why follow-up and, where appropriate, preventive medicines are important. Regular reviews with a neurologist allow the team to adjust medicines, monitor for new symptoms, and update the diagnosis if the picture changes.

Day-to-day life may involve adapting to fatigue, pain, or changes in mobility. Many people find that structured exercise within their limits, good sleep habits, attention to bladder and bowel routines, and skin care to prevent pressure sores make a meaningful difference. Support groups and counseling can help with the emotional side of living with an unpredictable condition.

Frequently asked questions

What are the first transverse myelitis symptoms?

Early transverse myelitis symptoms often include back or neck pain, followed by tingling, numbness, or unusual sensations in the feet or legs that may move upward. Weakness and bladder changes may follow over hours or days. Because early signs can resemble other conditions, only a medical assessment can determine the cause.

What causes transverse myelitis?

Transverse myelitis causes include immune conditions such as multiple sclerosis, neuromyelitis optica spectrum disorder, and MOG antibody-associated disease; infections; reactions that follow an infection; and other autoimmune diseases. In a proportion of people no cause is found, and the condition is called idiopathic. It is not contagious and is not caused by injury or lifestyle.

How is transverse myelitis diagnosed?

Transverse myelitis diagnosis relies on a neurological examination, MRI of the spinal cord and usually the brain, a lumbar puncture to examine spinal fluid, and blood tests for infections and specific antibodies. These tests also rule out other causes of spinal cord problems, such as compression, which need different treatment.

What is the standard transverse myelitis treatment?

The usual first transverse myelitis treatment is high-dose corticosteroids given through a vein. Plasma exchange may be used if symptoms are severe or steroids do not help. Any identified infection or autoimmune disease is treated, and rehabilitation with physical and occupational therapy supports recovery. Your doctor may also prescribe medicines for pain, spasms, and bladder symptoms.

Can people fully recover from transverse myelitis?

Some people recover most or all function, others have moderate lasting symptoms, and some have significant permanent disability. Recovery often begins within weeks to months and can continue for two years or more. Doctors cannot guarantee an outcome, but early treatment and rehabilitation are generally thought to support the best possible recovery.

Is transverse myelitis the same as multiple sclerosis?

No. Transverse myelitis describes inflammation of the spinal cord, which can happen on its own or as part of another condition. Multiple sclerosis is one of the conditions that can cause it. Many people with a single episode of transverse myelitis never develop MS, but doctors monitor for this possibility, particularly when the brain MRI shows changes.

Can transverse myelitis come back?

Most idiopathic cases occur once. Recurrence is more likely when an underlying condition such as NMOSD, MOGAD, or MS is present. This is why testing for these conditions matters, and why some people are advised to take longer-term medicines to reduce the risk of future attacks.

When to see a doctor

Transverse myelitis can progress quickly, and earlier assessment generally allows earlier treatment and a better chance of limiting damage. Anyone who notices new spinal cord symptoms should be evaluated promptly by a doctor. The following signs are considered urgent and warrant emergency care:

• Sudden or rapidly worsening weakness in the legs or arms
• Numbness or tingling that spreads upward over hours or days
• A new inability to pass urine, or new loss of bladder or bowel control
• A band of tight pressure or pain around the chest or abdomen with weakness or numbness
• Difficulty walking or standing that developed recently
• Sudden loss or blurring of vision, or pain when moving the eyes, together with spinal symptoms
• Severe back or neck pain with fever, especially with weakness or numbness
• Trouble breathing alongside neck pain or arm weakness

People who have already been diagnosed with transverse myelitis should seek prompt medical review if symptoms return, worsen, or new symptoms appear, since this may indicate a recurrence or a change in the underlying diagnosis that needs attention.