Generally speaking, concussions do not cause fever. In the event of a fever, it is important to identify the cause. The first and most common is infection of the scalp. Many concussions are caused by the effects of trauma to the head resulting in a disease of a functional nature. Therefore, it is necessary to check the changes in the head wound, whether there is blood oozing, exudate, pus flow, etc., and continue to improve the examination. If necessary, it is even necessary to sterilize the wound and check the condition of the wound. The second point is whether there is a lung infection, including the need to review the CT of the head as well as the CT of the chest to clarify the relevant changes in the condition. The third point is the possibility of central hyperthermia, but this is very rare. It must be clarified whether there is intracranial infection or the production of cerebrospinal fluid ear leak or nasal leak caused by unexplained skull base fracture, and these are the items that need to be checked. So generally concussions do not cause fever, and once fever is present, it is important to clarify the relevant tests.