Multiple sclerosis (MS) is a health condition that affects the brain and spinal cord. Ms is an autoimmune disease caused by your immune system mistakenly attacking the brain and spinal cord. Your immune system attacks the myelin sheath, a layer that surrounds your nerves and allows electrical signals to travel from the brain to the rest of your body.
Common symptoms of MS include fatigue, mobility problems, incontinence and muscle stiffness.
