I. Genetic factors (family factors) Genetic factors have an increasingly important influence in cerebral palsy, such as close relatives with epilepsy, cerebral palsy and two of the factors of low intelligence account for 65% of cerebral palsy. There are also chromosomal abnormalities. Maternal factors: Maternal mental retardation is the most important risk factor for cerebral palsy, accounting for 2.7 per cent of cerebral palsy. The next risk factor is maternal disorders during childbirth. Mothers with epilepsy, hyperthyroidism before pregnancy, or those with two or more stillbirths are significantly associated with cerebral palsy; congenital malformations; stillbirths and stillbirths. Maternal factors (prenatal factors) Advanced pregnancy, habitual abortion, multiple births, combined pregnancy with diabetes mellitus, huge babies (weighing more than 4000 grams), viral infection in the third trimester (TORCH infection during pregnancy), physical and chemical factors, X-ray exposure, smoking, alcohol abuse, long-term medication, gestational hypertension, ischemia and hypoxia during fetal life, and maternal nutritional disorders can all affect the fetus. The factors of delivery (intrapartum factors): long labor, placenta praevia, placenta abruptio, amniotic fluid abnormality, umbilical cord abnormality? The factors include: long labor, placenta praevia, placenta abruptio, abnormal amniotic fluid, abnormal umbilical cord, umbilical cord wrapping, intrauterine distress, cesarean section, breech position, forceps assisted delivery, cerebral hemorrhage in obstructed labor, severe asphyxia secondary to neonatal hypoxic-hypoxic encephalopathy, amnionitis, etc. Fourth, neonatal factors Very low weight infants, 2000-15000-1000 grams or less, premature infants (less than 32 weeks), premature infants (more than 40 weeks), neonatal asphyxia, neonatal convulsions, severe jaundice (hyperbilirubinemia, bilirubin encephalopathy), apnea, cyanotic seizures, craniocerebral malformations, intracranial infections, hypoglycemia, central nervous injury, etc.