After craniotomy, we need to pay attention to the following matters: 1, after surgery, we need to routinely enter the intensive care unit to monitor the patient’s vital signs, such as blood pressure, pulse, respiration, pupil, consciousness, etc.; 2, we need to pay attention to the patient’s drainage tube, because the head drainage tube is usually left in place after craniotomy, if there are abnormalities in the nature, amount and color of the drainage fluid, we need to immediately inform the doctor and review the head For example, after craniotomy for cerebral hemorrhage, the head of the bed usually needs to be elevated 30 degrees, which can reduce the intracranial pressure. For example, for chronic subdural hematoma, after borehole drainage surgery, the patient is routinely placed in a flat position. The main purpose is to ensure smooth drainage and prevent hypocranial pressure; 4. Active prevention of related complications, such as pulmonary infection, deep vein thrombosis of the lower extremities, urinary tract infection, etc. is required.