Causes of sunken head include: disease, trauma, drugs, etc. 1. This disease: When suffering from scleroderma, the patient's scalp shows localized pits. When touched by hand, the texture is hard and the boundary with the surrounding skin is not obvious. Patients with lichen sclerosus present with central skin sclerosis and atrophy. If the border with the surrounding skin is not cleared, the central skin will become sunken. When this happens, the cause usually needs to be treated. When the cause is treated, the symptoms of depression lessen. 2. Trauma: After the patient heals from trauma, the dermis and subcutaneous fat layer may be sunken due to trauma stimulation on the skin surface. This situation does not require special treatment and will return to normal after a while. 3. Medication: local injection such as hormone injection, closed injection such as long-acting hormone injection, etc. After the injection, the dermis will slowly shrink and sag due to the action of hormones. If the sunken part of the skin has this kind of situation, you can do local massage, which can promote blood circulation in the local damaged area and accelerate the healing of the tissue.