Scissor gait of the lower limbs is a clinical manifestation of spastic bilateral lower limb paralysis in cerebral palsy. The scissor gait is due to the increased muscle tone in both lower limbs, especially the increased tension in the extensor muscles, and the lower limbs are over-extended when moving, and the legs are crossed in a scissor shape. How to check for cerebral palsy? The manifestations of cerebral palsy are various depending on the etiology and typology, but early symptoms are more common: (Early symptoms in the first half of the infant with cerebral palsy (within 6 months of age)) 1. Body tenderness and reduced spontaneous movements, which are symptoms of hypotonia, can be seen at one month. If it persists for more than 4 months, it can be diagnosed as severe brain injury, mental retardation or muscular system disorders. 2. Stiffness of the body, which is a symptom of hypertonia, can be seen at one month. If it persists for more than 4 months, it can be diagnosed as cerebral palsy. 3. Slow reaction and unresponsiveness to name calling, which is an early manifestation of mental retardation. It is generally considered that slow reaction at 4 months of age and unresponsiveness to name calling at 6 months of age can be diagnosed as mental retardation. 4. Abnormal head circumference. Head circumference is an objective indicator of the morphological development of the brain, brain injury children often have abnormal head circumference. 5, poor weight gain, nursing inability. 6, fixed posture, often due to abnormal muscle tone caused by brain injury, such as coracoid, frog position, inverted U-shaped posture, etc.. It can be seen in the first month after birth. 7.No smile. If you can’t smile at 2 months and laugh out loud at 4 months, you can be diagnosed with mental retardation. 8.Hands in fists. If it cannot open at 4 months, or thumb inward, especially one side of the upper limb is present, there is important diagnostic significance. 9.Body twisting. 3-4 months old infants with body twisting often suggest extrapyramidal injury. 10, head instability. If at 4 months of age the head cannot be raised in prone position or cannot be held upright in sitting position, this is often an important sign of brain injury. 11, strabismus. 3-4 months of age infants with strabismus and poor eye movement, can indicate the presence of brain injury. 12. Inability to reach out and grasp objects. If the infant cannot reach out and grasp objects at 4-5 months of age, it can be diagnosed as mental retardation or cerebral palsy. If the hand gaze is still present after 6 months of age, it can be considered as mental retardation. Some brain injuries are milder and often have no obvious symptoms in early infancy, but in the second half of infancy (6-12 months).