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What are the symptoms of congenital myotonic dystrophy?

Symptoms of congenital myotonic dystrophy vary from person to person, but generally they are more severe than other types of muscular dystrophy. Symptoms begin in very early childhood, usually immediately after birth. Congenital myotonic dystrophy usually causes a general lack of muscle tone and development, and the muscles they do have are very weak. This gives babies with the condition a "floppy" appearance. Babies may also have trouble breathing, swallowing, and sucking due to problems with throat muscles. Congenital myotonic dystrophy can also cause weakness in the facial muscles, as well as clubfeet (inward curving of the legs and feet). The disorder may also lead to other problems such as speech, hearing, and vision difficulties. If brain muscle is affected by the disease, children may have significant cognitive disabilities.

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