The most common early symptoms of neonatal encephalitis are usually atypical, mostly fever, headache, vomiting, etc. In severe cases, coma and impaired consciousness may occur. Neonatal encephalitis can be categorized as viral encephalitis, bacterial meningitis, tuberculous meningitis, and so on, and the symptoms caused by different reasons are not exactly the same. However, early symptoms may be inflammation and increased intracranial pressure caused by fever, headache, loss of appetite, vomiting, etc. Severe involvement of the nervous system function, convulsions, impaired consciousness, coma, convulsions and other symptoms. When newborns have similar symptoms of encephalitis, they should consult a doctor in time to clarify the cause of the disease under the guidance of the doctor, so as to actively treat the disease and try to detect, diagnose and treat the disease as early as possible.