Due to the imperfect development of the nervous system, the concussion symptoms of a child will be different from those of an adult. Impaired consciousness is not obvious, delayed neurological symptoms predominate, and sometimes coma and brain herniation may occur. 1. In general, transient impairment of consciousness is not very obvious. 2. Symptoms of delayed neurologic deterioration, such as vomiting and lethargy, tend to occur, and the younger the child, the more pronounced this manifestation becomes. 3. Children’s concussion sometimes leads to serious consequences, such as coma, brain hernia, etc., sometimes even life-threatening. To summarize, when a child suffers a concussion, it is important to pay enough attention to it, seek medical attention in time, observe the child in the hospital for a period of time, and wait for the doctor’s assessment before discharging the child, so as to avoid as much as possible the occurrence of adverse events.