Encephalitis is a killer that endangers children’s health, so children should seek medical attention as soon as early symptoms of encephalitis are detected, so that early detection and treatment can be achieved. So what are the main symptoms of encephalitis? The next step is to list them in detail: First of all, most encephalitis will have fever. Fever is a typical symptom of early encephalitis, and it is difficult to explain this fever by other parts of the infection, for example, if the child has pneumonia at the same time, but the infection in the cough and lungs does not look very heavy, and the fever is very heavy, we should consider whether there are other causes that can cause fever, such as encephalitis. Secondly, due to increased intracranial pressure, some children may also experience vomiting, which is often described as jet vomiting, but in reality, the child’s vomiting can be atypical. As a result of damage to one area of brain tissue, there may be abnormalities in motor or other abilities in that area, and some children may have convulsions. In addition, headache, dizziness, drowsiness, and coma may also occur to varying degrees. When there is a simple headache, it is important to consider whether there is an increase in intracranial pressure, and when there is a problem with the level of mental consciousness and the child falls asleep again after being woken up, it is important to pay more attention to the symptoms of drowsiness. In short, encephalitis is a very important disease that may leave serious neurological sequelae, and early manifestations must be taken seriously.