The baby’s head posture is unstable, with poor grasp ability in the left hand, poor coordination between the left and right hands, and inability to roll over. The doctor’s examination results show that the baby’s knee-jerk reflex is hyperactive, and the muscle tension in the limbs is normal.Brain hypoxia and ischemia is one of the main causes of cerebral palsy, possibly due to impaired blood circulation and gas exchange between the mother and fetus. Other possible causes include pregnancy-induced hypertension syndrome, placental abnormalities, cord blood flow obstruction, and circulatory collapse.