The treatment of a bump on the back of the head includes observing the condition, reviewing the head CT, clearing the wound and treating the wound, and requiring surgery in serious cases. 1. If the patient has no obvious discomfort, such as dizziness, headache, nausea, vomiting and other symptoms, the condition can be temporarily observed. 2. If there is a serious headache, nausea, vomiting, you should immediately go to the hospital emergency room, check the skull CT to observe whether there is a skull fracture intracranial hemorrhage, epidural hematoma and so on. Give debridement treatment for simple skin trauma. 3. If the patient has nausea, vomiting and other persistent symptoms, or even impaired consciousness, cranial CT examination is clear that there are intracranial space-occupying lesions should be given surgical treatment, including intracranial hematoma removal surgery, skull repair surgery. The back of the head touched a bag, and accompanied by obvious symptoms, should be timely to the hospital emergency room.