In recent years, there are more and more patients with cerebral palsy. We can only discover the condition of our children at the first time if we clearly understand the symptoms and performance of cerebral palsy, so as to achieve early treatment and early recovery. Let’s learn more about it. This is a symptom of hypotonia, which can be seen at one month. If it lasts for more than 4 months, it can be diagnosed as severe brain injury, mental retardation or muscular system disease. 2. Stiffness of the body, which is a symptom of hypertonia and can be seen at one month and diagnosed as cerebral palsy if it persists for more than 4 months. This is the early manifestation of mental retardation. It is generally considered that if the reaction is slow at 4 months and the name is unresponsive at 6 months, it can be diagnosed as mental retardation. 4, hand fist: if 4 months still can not open, or thumb inward, especially the presence of one side of the upper limb, there is an important diagnostic significance. 5, abnormal head circumference: head circumference is an objective indicator of morphological development of the brain, and brain-injured children often have abnormal head circumference. 6, fixed posture, the child is very quiet after birth, crying faint or continuous crying, often due to brain injury so that the muscle tone abnormalities, such as coracoid, frog position, inverted U-shaped posture, etc., can be seen in the first month after birth. 7, not smiling: if 2 months can not smile, 4 months can not laugh loudly, can be diagnosed as mental retardation. 8.Body torsion: 3-4 months old infants with body torsion often suggest extrapyramidal injury. 9, head instability: if 4 months prone can not lift the head or sitting position when the head can not be vertical, is often an important sign of brain damage. 10, strabismus: 3-4 months of age infants with strabismus and poor eye movement, can suggest the presence of brain injury. 11.Children are easily startled: convulsions, screaming or irritability. 12. Difficulty in breastfeeding, not sucking after birth, weak sucking or refusing to suck, fatigue after sucking, frequent choking and spitting up, mouth not closing well, poor weight gain. 13.Inability to reach out and grasp things: If the baby cannot reach out and grasp things at 4-5 months, it can be diagnosed as mental retardation or cerebral palsy. 14.Gaze at hand: If it still exists after 6 months, it can be considered as mental retardation. 15.Little or no spontaneous movement or easy to jerk, general flaccidity, muscle relaxation or general hardness, often scurrying out of swaddling clothes