Autism is a condition that seriously impedes normal human communications and social interactions. It comes in various degrees of severity with some autistic people functioning at relatively high levels while others need fulltime care. As a rule it is a lifetime condition but therapy is helpful in many cases. Advances in medical knowledge enable parents and doctors to detect autism in toddlers. Changes in social attitudes have enhanced our dealings with autistic people. Not so long ago these people were known by the pejorative term of Mongols. There are many stories of how families locked away such children out of embarrassment.

1. Unresponsive to others

One of the most obvious signs of autism appears when a baby appears to be irresponsive to other people in their surroundings. Normally babies stare at people and they look towards where they hear a voice or sound. They also will try and take a finger that is extended towards them. At four months old or earlier babies start to smile. Normally when a baby starts to crawl, and even more so when they begin to walk, they enjoy interacting with other children. Autistic children fail to respond to these signs and prefer to play by themselves instead of joining with the other children.