I personally like to use autism. These two words have very subtle differences. Autism emphasizes that the child has problems, and autism emphasizes the possible influence of the social environment on the child's body and mind.

Core performance:
Communication barrier
1.Lack of eye contact (non-verbal communication); no response to others (limited language communication); difficult to share
2. Stereotyped behavior
Repeat physical movements; repeat daily habits; fixed interest; inappropriate response to stimuli
3. Accompanying performance
Mental retardation; language barrier; attention deficit hyperactivity disorder; developmental coordination disorder; anxiety disorder and depression disorder.

Specific performance:
1.Communication barrier
Linguistic: limited language, expression communication, unable to initiate social contact, or unable to respond to social contact;
Non-verbal: lack of eye contact, lack of facial expression, lack of posture response;
Sharing difficulties: sharing or sharing difficulties, such as sharing playing games.
2. Stereotyped behavior
Repeat body movements;
Repeating daily habits: Small changes often lead to extreme pain, difficult task transfer, stubborn adherence to daily rituals, and eating the same food every day;
Fixed interest: can be described as stubborn, extreme and strong, can form a special talent (rain man);
Inappropriate response to irritation: Overreaction or no response to stimuli, may be overreacting to sound, smell or taste. I might like the light movement and the favorite smell.

Grading, divided into three levels according to the degree of help in social communication performance and stereotypes
Level 1: Need help
Level 2: Substantial help is needed
Level 3: A lot of substantial help is needed

Inspection diagnosis
There are no medical tests available;
According to federal law (United States): The CDC receives a free assessment of any suspect (children between 18 and 24 months);
Professionals are a must;

Risk factor
Environmental factors: there is correlation
Older parents
Birth low weight
Mother taking medication during pregnancy

Genetic factors: suspected risk factors, difficult to identify
vaccine
Organic mercury

Treatment and rehabilitation
1. There is no single treatment, the family is the key to healing
2. Reward, especially for the continuous and effective reward of progress
3. Language communication: listening, watching, reading, expressing
4. Operational therapy
5. Social skills
6. Special food
7. Nutritional supplements

Solution
Learn as much as possible
Provide the correct structure and specifications
Contact other parents
Understand children's rights and developmental laws
Simple and consistent care
Step-by-step strategy