The recovery time after forehead bump concave should be analyzed objectively according to the different degrees of forehead damage. First, if the forehead bump concave, accompanied by local subcutaneous and soft tissue damage, did not cause skull fracture. By local ice or bruise damage cream topical application, oral Maizi Ling and other drugs to eliminate edema. In 5-7 days after the forehead depression edema can slowly subside. Second, if the forehead bump concave with skull bone fracture or fracture, even with the formation of subdural hematoma. Surgery is needed for skull repair and hematoma removal. The recovery time after surgery is long, and some patients even need 2-3 months of recovery time. After recovery, patients should review the head CT regularly, and if necessary, they need to perform surgical debridement treatment twice.