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Early signs and symptoms

Early signs can include frequent falls, difficulty running or climbing stairs, toe walking, enlarged-looking calves and using the hands to rise from the floor.

Updated October 22, 2026 · Not clinically reviewed

Understanding this topic

Early signs can include frequent falls, difficulty running or climbing stairs, toe walking, enlarged-looking calves and using the hands to rise from the floor.

What families should know

Some children have speech, learning or behavioral differences. These findings are not diagnostic on their own; ask a clinician about persistent weakness or delayed milestones.

Medical notice: This information is educational and is not individualized medical advice. Consult a neuromuscular specialist.

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