Smith Magenis Syndorme is a developmental disorder and affects many parts of the body. It mainly causes mild to moderate intellectual disability, delayed speech and language skills, distinctive facial features, sleep disturbances and behavioural problems.
Affected people have a broad, square- face and deep set of eyes, the cheeks are fuller with a prominent lower jaw. Apart from these facial features they may also have a flattened nose, and the mouth which tends to turn downward with a full with an outward curved upper lip. Along with these, dental problems are quite common too. The facial differences are subtle during the childhood but they usually become distinctive as a child grows into an adult.
Disrupted sleep is another one of the major characteristics of this disorder. A person with smith magneis may have trouble falling asleep or may feel very sleepy during day time. People having this condition may develop engaging personalities and feel very affectionate about everything but they also go through behavioural problems.
Such behavioural problems may include:
Some other signs and symptoms of this syndrome include:
This condition affects at least one person in twenty five thousand individuals worldwide. Many people with Smith Megenis syndrome are not even diagnosed.
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