The causes of sunken forehead include congenital cranial dysplasia, trauma, bone tumor, malnutrition, etc. Treatment includes medication and surgery. 1. Congenital cranial dysplasia: If the forehead is sunken at birth, no special treatment is needed. 2. Traumatic injury: If the depression is caused by a car accident or other traumatic injuries, then surgical treatments such as cranial bone repair can be given. 3. Bone tumor: For forehead depression caused by tumor, drug anti-tumor cell therapy can be given at this time, and tumor resection and other surgical treatments can be given when necessary. 4. Malnutrition: For the depression on both sides of forehead caused by malnutrition, protein and other nutrients can be supplemented at this time. Please consult a doctor in time for the phenomenon of sunken forehead, and the above medicines should be carried out according to the doctor’s prescription.