Signs of autism usually develops before a child is 3 years old, but may not be diagnosed until later. Parents typically become concerned when they notice that their toddler doesn't begin to talk or doesn't respond and interact like other children of the same age. Toddlers with autism don't usually develop speech normally and may seem to be deaf although hearing tests are normal.

The severity of autism varies from person to person. Some individuals need assistance in all aspects of their daily routines, while others are able to function at a very high level and can attend school in a regular classroom.

Cause: No one knows exactly what causes Autism, but it is thought that both genetic and environmental factors may play a role. We do know that parental actions do not cause children to have Autism.

While this is a lifelong condition that usually results in some degree of social isolation, treatment can make a major difference in the lives of people with autism. Early diagnosis and treatment has resulted in increasing numbers of people with autism being able to live independently as adults.