What is the diagnosis and presentation of autism.

Diagnosis of autism:

1. Qualitative impairment of communication skills, such as inability to make reasonable elaboration;

2. Qualitative impairment of social interaction, such as inability to use facial expressions in a reasonable manner;

3. Limited, repetitive, or stereotyped format of interests, behaviors, or activities.

Signs of autism:

1. Impaired social communication: this is the biggest problem faced by children with autism. The children are indifferent to the things around them and find it difficult to relate to the emotions and feelings of others or to express their emotions and feelings correctly. They seem to think that whatever exists in their own head exists in someone else's head as well, and that there is no difference between them. The child often believes that what they feel is what others feel, but this does not mean that they do not have feelings.

2. Lack of ability to learn and imitate: Imitation is the most important tool for a child to learn, and it is through imitation that a child learns to speak and communicate using silent body language, gestures and expressions. But autistic children don't know how to imitate.

3, language barrier: most children with autism have very little speech, and even serious cases of lifelong speechlessness. Even if some children can speak, they prefer to use gestures instead of language or only mechanically imitate the language of others.

4, narrow interest: autistic children's behavior is stereotypical, demanding of the environment, not allowing the slightest change. The child usually focuses on a certain kind of game or several kinds of games for a long time, and usually repeats some fixed and stereotyped actions, and even self-injurious behaviors