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  1. Multiple sclerosis - Symptoms and causes - Mayo Clinic

    Nov 1, 2024 · Multiple sclerosis is a disorder in which the body's immune system attacks the protective covering of the nerve cells in the brain, optic nerve and spinal cord, called the …

  2. Multiple Sclerosis (MS): What It Is, Symptoms & Treatment

    Multiple sclerosis (MS) is a central nervous system autoimmune condition. Damage to myelin causes symptoms like muscle weakness and vision changes.

  3. Multiple sclerosis - Wikipedia

    Multiple sclerosis (MS) is an autoimmune disease resulting in damage to myelin, which is the insulating covers of nerve cells in the brain and spinal cord. [1] .

  4. Multiple Sclerosis | National Institute of Neurological ...

    Jan 31, 2025 · It is an autoimmune disorder, meaning that in MS the immune system—which normally protects us from viruses, bacteria, and other threats—mistakenly attacks healthy …

  5. Multiple Sclerosis: Causes, Symptoms, & Diagnosis - WebMD

    Feb 25, 2024 · Multiple Sclerosis is when myelin, a sheath under the nerve cells, is attacked by the body's immune system. Learn about its causes, implications & treatment options.

  6. What is Multiple Sclerosis? | National MS Society

    Multiple sclerosis is an unpredictable disease of the central nervous system. The central nervous system includes the brain, spinal cord and optic nerves. This system controls everything we …

  7. Multiple Sclerosis - Harvard Health

    Jun 10, 2024 · Multiple sclerosis (MS) is a disease that affects nerve cells' protective sheath (myelin) in the brain and spinal cord, and it can affect the nerve cells (also known as neurons) …

  8. Multiple Sclerosis: Symptoms, Causes, and Treatment

    Nov 30, 2025 · What Is Multiple Sclerosis (MS)? Multiple sclerosis (MS) is a lifelong, autoimmune disease of the central nervous system (CNS) that affects nearly 1 million Americans and 2.8 …

  9. What is Multiple Sclerosis? - MSAA

    Oct 16, 2025 · What is Multiple Sclerosis? Multiple sclerosis (MS) is a disease of the central nervous system (CNS), which consists of the brain, optic nerves, and spinal cord. MS is an …

  10. Multiple Sclerosis (MS) – Symptoms and Causes | Penn Medicine

    Multiple sclerosis (MS) is an autoimmune disease that causes the immune system to turn inward and mistakenly attack the protective sheath, known as the myelin sheath, that encases nerve …