智力低怎样治疗

智力低如何治疗配图，仅供参考

Aetiology
There are over a thousand genetic disorders that are associated with IDD ). These conditions damage and interfere with the growth and maturation of the brain in during the prenatal,perinatal and postnatal periods. Prenatal conditions include genetic diseases such as chromosomal disorders (e.g. Down syndrome),and single gene disorders (e.g. inherited metabolic disorders such as phenylketonuria); adverse environmental influences such as severe malnutrition,deficiencies such as iodine or folic acid,and infectious diseases during pregnancy like rubella; and exposure to adverse materials and toxins such as pollutants,excessive radiation,substance use during early pregnancy (e.g. alcohol,leading to fetal alcohol syndrome),heavy metals,or harmful medications. Perinatal conditions include late pregnancy complications such as placental dysfunction,labour and delivery problems such as asphyxia,severe prematurity or birth trauma,and neonatal complications such as severe jaundice or septicaemia during the first four weeks of life. Postnatal conditions in infancy and childhood,extending into adolescence include traumatic brain injury,infectious encephalopathies,chronic lead exposure,severe and prolonged childhood undernutrition especially during the first two years of life ),and gross psychosocial under stimulation ). Coding of aetiology,when known,can be accomplished through diagnostic coding of the underlying disease. Such common codes may also be cross-listed under aetiology section of the clinical manual.","department":"