What is Myasthenia Gravis (MG)?

Myasthenia Gravis comes from the Greek and Latin words meaning "grave muscular weakness." The most common form of MG is a chronic autoimmune neuromuscular disorder that prevents healthy nerves from communicating with healthy muscles.

The prevalence of MG in the United States is estimated to be about 20/100,000 population. However, MG is probably under diagnosed and the prevalence may be higher. Myasthenia Gravis occurs in all races, both genders, and at any age. MG is not thought to be directly inherited nor is it contagious. It does occasionally occur in more than one member of the same family.

In addition to a complete medical and neurological evaluation, a number of tests may be used to establish a diagnosis of MG. There is no known cure for MG, but there are effective treatments that allow many-but not all-people with MG to lead full lives. Common treatments include medications, thymectomy and plasmapheresis. Spontaneous improvement and even remission may occur without specific therapy.

Common symptoms can include:

A drooping eyelid
Blurred or double vision
Slurred speech
Difficulty chewing and swallowing
Weakness in the arms and legs
Chronic muscle fatigue
Difficulty breathing

Please click the literature link above to read more in-depth information about MG, testing, diagnosis and treatments at the MGFA website.