Autism is difficult to diagnosis. When the diagnosis is made, it
can be difficult for parents to accept. Denial is the first
response, and it may last for so long that treatment may be
delayed. Parents are usually the first to suspect that something
is wrong. A previously normal child will suddenly act odd.
Language development may stop or regress. Social reactions may
become inappropriate or disappear. Bizarre behavior may appear,
such as emotional breakdowns or obsessive repetition. Such
symptoms should be mentioned at routine doctor visits to
determine if a specialist needs to be consulted. Professionals
who specialize in autism—child psychiatrists, child
psychologists, developmental pediatricians, and pediatric
neurologists—will observe the child's behavior, social contacts,
and communication skills. They will assess mental and social
skills and develop a detailed history of the child's behavior.
Some doctors ask parents to bring in videotapes of the child at
home. Photo albums and other records may help