Every parent wants to have a healthy baby, not only physical health, intelligence including physical and mental health and other aspects to be healthy and healthy, but there are many children in the small age because of a variety of reasons to make the intelligence low, the impact on the child is a lifetime, then what are the reasons for the child's mental retardation?
1. Heredity
Genetic factors are one of the main causes of severe mental retardation, which accounts for more than half of the total number of severe mental retardation caused by genetic disorders in developed countries.
2. Infection and dystocia
If a pregnant woman is infected with rubella virus, influenza and other viral diseases in the first 4 months of pregnancy, it is extremely harmful to the fetus and the baby, which can cause fetal congenital malformations and intellectual disabilities.
3. Disease
Congenital stupidity, also known as Down syndrome, is caused by chromosomal abnormalities. Indigo is also known as congenital hypothyroidism. Due to abnormal thyroid development, thyroxine cannot be synthesized, which affects brain development. Phenylketonuria is due to a defect in enzymes, and the metabolism of ingested phenylalanine is blocked, causing dysfunction of brain cells. Cat call syndrome is due to problems with chromosomes in the body.
4. Social and family psychological factors
Early social isolation, emotional artificial deprivation, lack of maternal love, lack of care, cultural isolation, inappropriate teaching methods, etc. can affect children's intellectual level. In families with high socioeconomic status, stable family structure and well-educated mothers, children have a higher level of intelligence than those with poor relevant conditions. Other factors, such as extended families, multiple children, short birth intervals, twins and parental divorce, have a direct impact on children's intellectual development.