Myasthenia Gravis (MG)

What is Myasthenia Gravis (MG)?

Myasthenia gravis (MG) is the most common primary disorder of neuromuscular transmission. The usual cause is an acquired immunological abnormality, but some cases result from genetic abnormalities at the neuromuscular junction. Much has been learned about the pathophysiology and immunopathology of myasthenia gravis during the past 20 years. What was once a relatively obscure condition of interest primarily to neurologists is now the best characterized and understood autoimmune disease. A wide range of potentially effective treatments are available, many of which have implications for the treatment of other autoimmune disorders.

Common Symptoms

Talk to your doctor if you have difficulty:

  • Breathing
  • Seeing
  • Swallowing
  • Chewing
  • Walking
  • Using your arms or hands
  • Holding up your head


With treatment, you may expect to see modest to significant improvement in your strength, helping you lead a full life. New treatments continue to give hope to people with MG, their family, and their caregivers. Information on available treatments is below.