About 37,600,000 results
Open links in new tab
  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 myelin sheath.

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

    Multiple sclerosis (MS) damages the protective cover around nerves called myelin in your central nervous system. It can cause muscle weakness, vision changes, numbness and memory issues.

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

    Feb 25, 2024 · Multiple sclerosis (MS) happens when your immune system attacks myelin, the sheath around your nerve cells. Without this outer shell, your nerves become damaged and cause …

  4. 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 do. MS disrupts …

  5. Multiple Sclerosis - National Institute of Neurological Disorders and ...

    Jan 31, 2025 · What is multiple sclerosis? Multiple sclerosis (MS) is a chronic neurological disorder. It is an autoimmune disorder, meaning that in MS the immune system—which normally protects us from …

  6. Understanding Multiple Sclerosis (MS) - Healthline

    May 9, 2025 · Multiple sclerosis (MS) is a chronic condition involving your central nervous system (CNS). With MS, your immune system attacks myelin, which is the protective layer around nerve …

  7. Multiple Sclerosis: Symptoms, Diagnosis and Treatment | U.S. News

    Mar 10, 2025 · Multiple sclerosis is a chronic autoimmune disease in which the immune system attacks the protective covering of nerve cells in the brain and spinal cord, interrupting vital signaling. MS …

  8. 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) as well. The …

  9. Multiple Sclerosis (MS) - Johns Hopkins Medicine

    It is thought to be an autoimmune disorder, a condition in which the body attacks itself by mistake. MS is an unpredictable disease that affects people differently. Some people with MS may have only mild …

  10. What is Multiple Sclerosis? - MSAA

    Oct 16, 2025 · 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 unpredictable disorder that can cause a variety …