Smith-Magenis syndrome

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Smith-Magenis syndrome (SMS) is a genetic, developmental disorder characterized by congenital abnormalities, and behavioral and cognitive problems. Signs and symptoms include skeletal malformations, intellectual disability, sleep disturbances, speech and motor delays, and self-injurious or attention-seeking behaviors. Another sign is distinctive facial features such as a broad, square-shaped face, deep-set eyes, prominent lower jaw, full cheeks, and a flattened face and bridge of the nose. Behavior problems include temper tantrums, aggression, impulsiveness, anxiety and difficulty with concentration. There is no specific treatment for SMS, but interventions focused on symptoms are available.


Organizations exist to help and support those dealing with Smith-Magenis Syndrome in their lives.

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