The incidence of encephalitis in young children has become more common in recent years, and the symptoms are different depending on the location of the lesion and the age and sex of the child. For children with encephalitis, systemic symptoms are more common at this time, such as fever, headache, nausea or vomiting, and other cold-like conditions, and only a very small number of children may have symptoms of myocarditis. 2. Children with encephalitis also have neurological manifestations, including convulsions, confusion, drowsiness, transient paralysis of the neck muscles and scapular muscles, drooping of the head, and inability to raise the arms. Abnormalities of the cerebral nerves and lower extremities are rare. Some children may also develop muscle atrophy. If the lesion occurs in the brainstem, the child will have facial nerve palsy, difficulty swallowing, or numbness of the limbs; children with pseudotumor encephalitis will have poor limb movement, aphasia, or paralysis; and children with herpetic encephalitis will have a generalized herpes. There are many different types of encephalitis, so it is not easy to distinguish the symptoms. Each child has different symptoms, so it is important to find abnormalities and go to the hospital early.