Symptoms of mental retardation in children.

1, hyperactivity, attention deficit, abnormal behavior, mental retardation, mental retardation and poor self-control ability, most of the children show attention deficit, some of them are accompanied by hyperactivity, which is more common in boys. The main performance is that you can't point your attention to something for a long time, especially the attention that requires will efforts; It's easy to be distracted, and attention is easily disturbed by the outside world. It is difficult to persevere in doing things. Some mentally retarded children have abnormal behaviors, which are difficult to do even for 3 or 5 minutes. Accompanied by hyperactive actors, I wriggle around in my chair in class, unable to sit still, like to talk a lot, and often affect other students' classroom study.

2. Abnormal sexual behavior. Judging from the psychological development of normal children, children aged 3-5 generally begin to pay attention to the differences between the sexes. Normal boys aged 3-5 will show special interest in their genitals, be curious and often be good at playing. However, with the increase of age, the awareness of morality and social behavior norms will increase, and this behavior will gradually disappear. However, students with mental retardation have low awareness of moral behavior norms and poor self-control, especially young or severely mentally retarded boys, who play with external genitalia regardless of venue and time. In girls with mental retardation, the abnormal behavior of leg pinch syndrome is found, which is characterized by forcibly pinching and rubbing legs to stimulate external genitalia, but it is less common than boys. It is also common for students with mental retardation to like to contact and get close to classmates or teachers of the opposite sex.

3. Abstinence behavior. Withdrawal behavior is also common in normal preschool children, but it will get better with age. Older children with mental retardation, especially serious students, tend to retreat, such as timidity, shyness, bow their heads, low voice, fear of meeting strangers, going to unfamiliar places, and being too attached to their loved ones. While others take the method of solitude and avoidance.

4. Anti-social behavior Anti-social behavior mainly refers to behaviors that do not conform to moral and social norms, such as lying, playing truant, stealing, cheating, deliberately making trouble, etc. This is common among students with mild mental retardation, with more boys. If we don't pay attention to correct guidance, it is easy for adults to develop into anti-social personality, deviate from the whole social code of conduct, and even commit illegal acts that harm others' lives, property or social security, with serious consequences.

5. pica behavior is characterized by swallowing non-food substances such as paint, gypsum, hair and dirt on toys, and different digestive system problems are caused by different foreign bodies swallowed.