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Patient Education

Learning the Basics of Duchenne Muscular Dystrophy

key information

source: Nationwide Children’s

year: 2016


Duchenne muscular dystrophy (DMD) is an X-linked disease. That means that it’s a genetic disease carried on X-chromosome and typically inherited through the mom. Because of this mechanism, Duchenne muscular dystrophy typically affects boys. It’s estimated that approximately one in 3,500-5,000 boys have Duchenne muscular dystrophy.

Symptoms occur early in childhood and include the following:

-Low muscle tone
-Enlarged calf muscles
-Delay in meeting developmental milestones
-Progressive muscle weakness
-A waddling gait
-Presence of a Gower’s maneuver (illustration below)


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