Having a subdural hemorrhage drain has no effect on future anesthesia and is nothing to worry about. Patients with subdural hemorrhage drainage surgery, this surgery is usually seen in neurosurgery patients due to the emergence of subdural hematoma, after craniotomy, need to be placed in the postoperative drainage tube, to promote blood flow, is conducive to wound healing, for this kind of patients in the future again anesthesia has no effect. Because after this kind of surgery, the patient’s own dural anatomy can be restored to normal, usually has no effect on anesthesia; the patient can still have spinal anesthesia; there is no effect on general anesthesia and local anesthesia for subdural hemorrhage drainage. Patients can go to the anesthesiology department of the local hospital to consult and listen to the advice of professional doctors for treatment.