Encephalitis is a very large type of disease, it includes many, such as viral encephalitis, bacterial encephalitis, and some tuberculous encephalitis and other different causes. The symptoms of encephalitis are characterized by the following main symptoms: 1) systemic symptoms: such as having a fever and possibly poor mental status such as fatigue; 2) whole brain symptoms: such as headache, nausea, vomiting, and even some severe ones such as epilepsy, convulsions, and some may appear coma, leading to the occurrence of impaired consciousness; 3) focal symptoms: due to different parts of the encephalitis invasion, it may 3. Focal symptoms: Due to the different parts of the encephalitis, these symptoms may appear like hemiplegia of the limbs, aphasia, etc.