The difference between general anesthesia and semi-anesthesia mainly has a different scope of surgery, the patient’s state of consciousness during the operation, the use of different types of drugs and other aspects. 1. The scope of surgery is different: general anesthesia surgery is not limited to the scope of surgery, the whole body can be operated; semi-anesthesia surgery surgery is usually concentrated in most of the lower limbs, abdomen and other parts of the surgery, with certain limitations. 2. Different state of consciousness of patients during surgery: due to general anesthesia, general anesthesia surgery, the patient is completely unconscious, the doctor carries out the operation is carried out in the patient’s state of unconsciousness, the patient will be relatively more comfortable; half anesthesia surgery is only half anesthesia, the patient is conscious during the operation, the patient needs to cooperate with the doctor to carry out the operation. 3. Different types of drugs: compared with semi-anesthesia surgery, general anesthesia surgery with a relatively large variety of drugs, including analgesics, sedatives, inhalational anesthetics, muscle relaxants, etc.; and semi-anesthesia surgery usually only local anesthetics, auxiliary sedative drugs. Before anesthesia, patients need to cooperate with the doctor to carry out relevant examinations, so that the doctor fully understands the patient’s physical condition, and then choose the appropriate anesthesia.