What is cerebral palsy? Cerebral palsy (CP) is a syndrome caused by non-progressive brain injury and developmental defects from conception to infancy, mainly manifesting as motor deficits and postural abnormalities, and may be accompanied by varying degrees of mental retardation, convulsions, psycho-behavioral abnormalities, perceptual deficits and other abnormalities. Causes of prenatal period (fetal period): infection, hemorrhage, hypoxia, toxemia of pregnancy, maternal trauma. Perinatal period (birth process): obstructed labor, preterm birth, neonatal asphyxia. Postnatal period (early infancy): jaundice, infection, trauma, high fever, hypoxia. Early manifestations The manifestations of cerebral palsy vary depending on the etiology and typology, but the early stage (within 6 months of age) are most common: body tenderness and reduced spontaneous movements; body stiffness; unresponsiveness and unresponsiveness to name calling; abnormal head circumference; poor weight gain and inability to nurse; fixed postures, such as corneal inversion and frog position; inability to smile at 2 months of age, inability to laugh loudly at 4 months of age; inability to open the hand at 4 months of age, or inward thumb 3-4 month old infants have body twisting; head instability; 3-4 month old infants have strabismus and poor eye movement.