It is more difficult to diagnose cerebral palsy by symptoms in early stage, and the symptoms mostly appear gradually with development. Generally, the symptoms of cerebral palsy can be more obvious around 6 months of age, and most of them can appear within 1 year of age with a certain regularity. However, there are obvious individual differences in symptoms, and the time of appearance of symptoms is related to the degree of damage and other factors. Moreover, there are various clinical types of cerebral palsy, which do not necessarily have tongue-spitting performance, and cerebral palsy cannot be diagnosed based on tongue-spitting symptoms alone. Cerebral palsy, or cerebral palsy, refers to brain damage that occurs before birth to one month after birth, possibly due to embryonic brain developmental malformations, premature birth, postnatal central nervous system infections, etc. Persistent motor and postural disorders and activity limitations may be accompanied by abnormalities in sensation, cognition, behavior, and seizures. Dyskinesia is the earliest manifestation of cerebral palsy during development, and its symptoms may change as the infant develops gradually. The spastic type of cerebral palsy is the most common, and may present with postural abnormalities such as elbow and wrist flexion, finger clenching, and scissor leg; the hypotonic type may present with movement disorders such as limb flaccidity, tongue vomiting, and salivation. Cerebral palsy can be characterized by tongue-putting and may be accompanied by hearing and speech dysfunction or epilepsy. Infants with oral or thyroid disorders and growth retardation such as trisomy 21 may also show symptoms of neurological damage such as frequent tongue vomiting and salivation, so it is recommended to seek prompt medical attention to identify them.