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Myasthenia Gravis

Statistics of Myasthenia Gravis

Facts about Myasthenia Gravis Include:

  • About 20 in 100,000 people in the U.S. develop myasthenia gravis
  • More men are affected than women
  • Symptoms usually appear in women between ages 20 and 30, and in men after age 50
  • The disorder is not hereditary although it may occur in members of the same family
  • A temporary form of myasthenia gravis occurs in 12-20 percent of babies born to mothers with the disorder
  • 10 percent of cases affect adolescent, primarily white girls
  • 70 percent of people experience reduced symptoms following surgery to remove the thymus gland (thymectomy)

Locations for Myasthenia Gravis