The first thing you need to do is to go to the hospital and seek emergency surgery. Some hospitals are more detailed and can also register for emergency brain surgery. After the doctor’s examination, if it is only a scalp hematoma, which is what the people call a bump on the head, do not pay too much attention to it, you can go home and continue to adjust, after the absorption of the scalp hematoma, the headache and head discomfort symptoms will naturally be reduced or significantly relieved. It is important to note that in the first instance, the head CT or MRI must be checked to exclude any acute intracranial hemorrhage or subdural hematoma. If no hemorrhage or subdural hematoma is found on a complete head CT, it is important to review the head CT again within 3-7 days after the impact, because some hematomas are not obvious when the blood vessels rupture and bleed, and some subacute, subdural edema or epidural hematoma will not appear until 72 hours or a week after the onset of symptoms, and will be diagnosed on the imaging CT. The diagnosis is clear. Therefore, the CT should be checked first after the onset of the disease, and the head CT should be repeated 3-7 days after the onset of the disease. if both head CTs indicate no major problems, intracranial hemorrhage or chronic, subacute, or acute subdural hemorrhage can be basically excluded. However, if headache, nausea or head discomfort occurs for a long time after the impact, whether it is a few days or a few months, it is recommended to visit the hospital again. Some chronic subdural hematomas or chronic subdural effusions can occur within 1-2 months after the impact and therefore should not be taken care of.