Sometimes you may hear other developmental disorders mentioned in the same context as autism, such as Asperger's disorder, Rett syndrome, and childhood disintegrative disorder. These disorders, along with autism, are all considered pervasive developmental disorders . People diagnosed with any of these disabilities have problems with social skills and communication. There are no medical tests to determine whether someone has autism, although doctors may run various tests to rule out other diagnoses. So the best way to identify autism is to watch how a child behaves and communicates.
Parents can help by telling the doctor how the child acts at home.
Together, they will make a diagnosis. For specific medical advice, diagnoses, and treatment, consult your doctor.