Subarachnoid hemorrhage craniotomy two months after the incision corresponding to the place of pain, usually with the incision infection inflammation, poor healing of the incision, the incision by strong pulling and other factors. 1. Inflammatory infection of the incision: if the trauma is relatively large, the wound has not healed after the surgery, invaded by inflammation, easy to cause inflammatory edema, manifested as trauma pain, edema and so on. 2. Poor healing of incision: usually related to individual physique, autoimmune factors, etc. When the immune system is low, the elasticity of the blood vessel wall of the wound is weakened, which may affect the healing of the incision, and easily lead to poor healing, causing wound pain and accompanied by purulent reaction. 3. Strong pulling on the wound: Doing strenuous exercise when the wound is not fully healed will lead to strong pulling on the wound, which will easily cause wound dehiscence and wound pain. Patients with subarachnoid hemorrhage need to be regularly observed after craniotomy, and those with poor wound recovery should seek medical attention in time and be treated in time by a professional doctor who will analyze the cause of the disease and re-suture the wound if necessary.