Is transverse myelitis a hereditary disease?

Transverse myelitis is not a hereditary disease; it is not passed down through genes from parents to children, and it is not linked to inherited genetic mutations. Clinically, this disorder is classified as an acquired neurological condition that occurs as a result of an inflammatory process affecting the myelin sheath, which is the insulating layer that protects nerve fibers in the spinal cord [5]. Due to this inflammation, the signals transmitted by the spinal cord to the rest of the body are disrupted, leading to sudden and acute neurological symptoms.

Nature of the Disorder and Acquired Causes

Despite the lack of a direct hereditary link, researchers associate transverse myelitis with various environmental and immune triggers. A patient is not born with this disorder; rather, the condition usually appears as a result of an abnormal immune response. Known triggers include the following:

• Viral and bacterial infections: Inflammation often appears after recovery from a viral infection (such as herpes, influenza, or enteroviruses) or a bacterial infection, where the immune system is mistakenly triggered to attack the spinal cord tissues [5].
• Immune diseases: Transverse myelitis may be associated with autoimmune conditions such as multiple sclerosis or neuromyelitis optica, which cause damage to the myelin sheath [5].
• Idiopathic cases: In a significant percentage of cases, no direct or specific cause for the onset of inflammation is identified, which confirms its nature as an acquired, episodic event.

Diagnosis and Clinical Management

Since the disease is not hereditary, diagnosis does not rely on genetic testing; instead, it focuses on excluding causes of compression on the spinal cord and a comprehensive neurological evaluation. This typically includes performing an MRI to evaluate the spinal cord and testing the cerebrospinal fluid [4]. To learn more about the symptoms associated with this disorder, you can review our article: Transverse Myelitis: Weakness, Numbness, and Sudden Urinary Disorder (Arabic).

Warning Signs and the Necessity of Urgent Intervention

Neurological symptoms resulting from this inflammation require urgent medical evaluation to avoid permanent neurological damage. You must go to the emergency room immediately in the following cases:

• Feeling sudden weakness or heaviness in the legs or arms.
• Sudden sensory loss or feeling severe tingling or a "tight band" around the chest or abdomen.
• Acute disturbances in bladder or bowel control.
• Severe back pain that suddenly radiates to the limbs.

The treatment plan relies on medications (such as steroids) and rehabilitation therapy to reduce the severity of symptoms. The chances of recovery vary from one person to another, as most patients regain at least partial function, while some may face permanent complications [5]. Continuous follow-up with a neurologist is essential to manage any long-term complications such as muscle stiffness or chronic pain.

Medical references

• Spinal Cord Diseases | MedlinePlus
• Transverse myelitis - Symptoms & causes - Mayo Clinic