1. Social difficulties: People with autism often find it difficult to establish normal social relations with others, such as eye contact, smile and body language.
2. Communication problems: People with autism may have difficulties in understanding language and expressing their thoughts and feelings, and may also have problems such as language repetition, monotony and grammatical errors.
3. Stereotyped behavior: Autistic people may show some stereotyped and repetitive behaviors, such as shaking and repeating certain actions.
4. Narrow interest: People with autism often show abnormal interest in certain things or themes, and may lack interest in other things.
5. Perceptual problems: Autistic patients may be overly sensitive or insensitive to sensory stimuli, such as abnormal reactions to sound, light and touch.
6. Lack of social imagination: People with autism often lack social imagination, and it is difficult to understand other people's intentions and emotions, and it is also difficult to predict other people's behavior.
7. Poor social adaptability: People with autism often find it difficult to adapt to changes in the social environment, such as changes in social rules and interpersonal relationships.
8. Repetitive behavior and persistence: People with autism often insist on their own thoughts and behaviors, and often show some repetitive behaviors, such as sorting things out repeatedly and asking the same question repeatedly.
These characteristics may disturb the social, study and life of autistic patients, so autism needs to be diagnosed and treated with the help of professional doctors, psychologists or therapists.