Learn about CMT

Charcot-Marie-Tooth Disease, or CMT, slowly destroys the peripheral nerves, all the nerves outside the brain and spinal cord. This nerve damage causes muscle weakness and wasting, and some loss of sensation, mostly in the extremities of the body: the feet, the lower legs, the hands and the forearms.

Some common symptoms include:

  • Foot deformity (very high arched feet);
  • Foot drop (inability to hold foot horizontal);
  • “Slapping” gait (feet slap on the floor when walking because of foot drop);
  • Loss of muscle in the lower legs, leading to skinny calves;
  • Numbness in the feet;
  • Difficulty with balance;
  • Pain
  • Later, similar symptoms also may appear in the arms and hands.

CMT almost never affects brain function.
CMT affects about 2.8 million people worldwide. MS affects 2.5 million people worldwide. We’ve all heard about MS but few know about CMT. It is the most common disease no one has ever heard of.

There are no known treatments that will stop or slow down the progression of CMT, but the CMTA is funding research to find these treatments.


– for additional information please visit CMTA USA