It is a condition characterized by apparently normal, near- normal early development followed by partial or complete loss of acquired hand skills and of speech, together with deceleration in head growth, usually beginning between 7 and 24 months of age. It has so far been reported only in girls.
The following features are often suggestive of the presence of Rett’s Disorder:
v There may be decrease in the child’s head growth
v There may be loss of previously acquired purposeful hand skills with the subsequent development of stereotyped hand movement such as hand-wringing or hand washing.
v There is a loss of social engagement.
v The child may find it difficult to walk properly.
v There may be appearance of poorly coordinated trunk movements.
v Impairments may be seen in the child’s use of language and motor functions.
v The child may not be able to chew his food properly.
v There may be a failure to gain bowel and bladder control.
v Excessive drooling and protrusion of the tongue may be present
v There may be a loss of social engagement