Autism is
(B) Social & language communication problem# Autism (i.e. marked impairment in reciprocal social and interpersonal interaction): Absent social smile, Lack of eye-to-eyecontact, Lack of awareness of others' existence or feelings; treats people as furniture, Lack of attachment to parents and absence of separation anxiety, No or abnormal social play; prefers solitary games, Marked impairment in making friends, Lack of imitative behavior, Absence of fear in presence of danger.
Neurodevelopmental disorder
Social and language communication problem
Metabolic disease
Mainly due to hypothalamus damage
Miscellaneous