Myasthenia gravis is a neuromuscular disorder that causes weakness and fatigue in the muscles. It is an autoimmune disease that affects the neuromuscular junction, the area where nerve impulses are transmitted to muscles. The immune system mistakenly attacks and damages the receptors on the muscles that receive nerve impulses, leading to muscle weakness and fatigue.
Treatment for myasthenia gravis usually involves medication to improve muscle strength, immunosuppressive therapy to suppress the immune system and reduce the attack on the neuromuscular junction, and plasmapheresis or intravenous immunoglobulin to remove or block the harmful antibodies.
In severe cases, surgical intervention such as a thymectomy (removal of the thymus gland) may be necessary. With proper treatment, many people with myasthenia gravis are able to manage their symptoms and lead normal, active lives.