The causes of cerebral palsy are complex. Any factor that can cause brain tissue damage in the fetus or newborn can be the cause of cerebral palsy, starting from the mother’s pregnancy until 4 weeks after the child is born. Broadly speaking, the factors that cause cerebral palsy are divided into three periods: prenatal, perinatal and postnatal. Pre-birth factors usually include: maternal smoking or passive smoking during pregnancy, alcohol abuse, inappropriate medication, exposure to toxins, toxoplasma infection, rheumatism, pre-eclampsia, gestational hypertension syndrome, placental dysfunction, and advanced maternal age. Perinatal factors include: forceps delivery, fetal malposition, prolonged or emergency delivery, birth asphyxia, preterm delivery, overdue delivery, multiple births, and bilirubin encephalopathy. Postnatal factors include: head trauma, intracranial hemorrhage, infection, poisoning, nutritional disorders, etc.