Hall knows of no one else in her family with the disorder. If either parent has CMT, there's a 50 percent chance of passing it on to each child. Type 2 affects the nerve fibers themselves and doesn't manifest itself until later. A third variety, Type 3, is the most severe and usually shows itself with delayed motor skills in infancy. After a neurologist's examination, CMT patients are often referred to foot and ankle specialists.
Genetic testing is now also available.