Patients and their families often ask what is the success rate of surgery and what are the risks? This question is difficult to answer because: first of all, what is the meaning of “success rate”? It is rather vague. For the patient, any of the following can be considered successful. 1. The patient is considered successful if he or she gets off the operating table successfully. 2. If the patient regains consciousness smoothly after surgery, it is also considered a success. 3, Due to the special location of the lesion, there is an associated neurological dysfunction after surgery, and a slow recovery later is also considered a success. 4.Sometimes, in order to remove the lesion completely or more, some functions are sacrificed as a last resort, which is also considered a success. 5.For some life-saving surgery (difficult to survive without it or with fatal disaster), saving the life is also considered successful. For doctors, they cannot guarantee the final outcome of the patient, but only that they will definitely do their best. 1. Just as there are no two leaves in the world that are identical, there are no two patients in the world that are exactly the same. (Uniqueness) 2. Even if the first 100 surgeries are successful, there is no guarantee that the 101st will be as successful. (Uncertainty) 3. The success rate is a statistical result of a large number of cases and has little significance for individual patients, for whom there is only 0 or 1. 4. Surgery is only an important part of the whole treatment process, and even if the surgery is successful, it does not mean that the result you expect will definitely occur. When a patient is on the operating table, the most confirmed person in this world who sincerely hopes that he can get off the operating table successfully is the chief surgeon.