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Charcot-Marie-Tooth disease

Charcot-Marie-Tooth disease is a group of inherited disorders that cause nerve damage, primarily in the arms and legs, leading to muscle weakness and atrophy.

Overview

Charcot-Marie-Tooth (CMT) disease is one of the most common inherited neurological disorders. It affects the peripheral nerves, leading to muscle weakness and loss of sensation. It typically affects the feet and legs first, then the hands and arms.

Symptoms

Symptoms include muscle weakness and wasting in the lower legs and feet, causing foot drop and high arches. It can also cause numbness, tingling, and difficulty with fine motor skills. Symptoms usually appear in adolescence or early adulthood.

Causes

CMT is caused by genetic mutations that affect the structure or function of the peripheral nerves. There are several types of CMT, each linked to different genes.

Treatment

There is no cure. Treatment focuses on physical therapy, occupational therapy, and rehabilitation to maintain strength and function. Orthotics, braces, and surgery may be needed to correct deformities.

When to See a Doctor

If you have a family history of CMT and experience any symptoms, or if you have unexplained muscle weakness, see a neurologist.