A large bump on the forehead usually resolves on its own if it is small, but if the condition is severe and the bump is large, it often does not resolve on its own and requires medical intervention. If the forehead touches a large bag, if there are no other symptoms, such as dizziness, vomiting, etc., and no scalp hematoma or intracranial hemorrhage, it means that the condition is relatively mild, and usually can be eliminated by itself, if you need to eliminate it quickly, you can also apply cold compresses within 24 hours, and hot compresses after 48 hours, to promote blood circulation and promote the absorption of tissue fluids. If the patient’s condition is more serious, the bag is larger and a hematoma is formed, puncture and fluid extraction and pressure bandage are needed. If accompanied by dizziness, vomiting, fainting and other uncomfortable symptoms, you need to go to the regular hospital in time for examination, diagnosis and timely treatment to avoid delay. Patients are advised to avoid exertion, pay attention to head protection, and avoid falling and bumping.