Cerebral palsy is also known as cerebral palsy. Symptoms of cerebral palsy in three-month-old babies include abnormal reflexes, backward motor development and abnormal muscle tone. 1. Spasticity or paralysis: often manifested as hyperreflexia, ankle clonus, etc. Some babies may be accompanied by limitation of limb movement or increase in involuntary movement. 2. Lagging behind in motor development: for example, three-month-old babies can’t lift their heads in prone position or can’t lift their heads stably, and can’t use their forearms to support weight-bearing. 3. Abnormal muscle tone: abnormal muscle tone or postural abnormalities, such as flexion of the hands and fingers, head and neck tilt, clenched fists can not be stretched. 4. Other symptoms: Children with severe cerebral palsy may adopt spasmodic postures when they are quiet, and may be slow to respond to postural changes. If your baby has any of the above symptoms of cerebral palsy, it is recommended that you take your baby to the hospital in time to avoid delay.