General Overview
Multiple sclerosis (MS) is a chronic, disabling disease of the central nervous system. The disease causes inflammation, destruction, and scarring of the sheath that covers nerve fibers (called myelin) in the brain and spinal cord. As a result, electrical signals from the brain are slowed or blocked from reaching the eyes, muscles, and other parts of the body.
InDepth
- What is multiple sclerosis?
- What are the risk factors?
- What are the symptoms?
- How is it diagnosed?
- How is it treated?
- What are the screening tests?
- How can I reduce my risk?
- What should I ask my healthcare provider about multiple sclerosis?
Find answers in our in-depth report on multiple sclerosis:
Living With MS
A diagnosis of MS can present profound challenges to a relationship. Communication is a key component in dealing with the added stress MS may create. Read more here.
Special Topics

Multiple sclerosis can impair the nerves that promote normal ejaculation. Read more here.
For women who have arthritis, stroke, Parkinson's disease, multiple sclerosis, or other conditions that cause tremors, putting on makeup can be an impossible task. Permanent makeup eliminates their frustration. Read more here.

A small number of people are born with taste disorders, but did you know that multiple sclerosis can be linked to these disorders? Read more here about taste and smell disorders.