Unilateral cryptorchid surgery is generally not considered a complicated major surgery in tertiary hospitals because of its relatively simple operation and quick recovery after surgery, but ultimately it still depends on the patient’s disease condition and physical condition. 1. Simple operation: the operation mainly adopts oblique incision in the groin, and the testicle can be fixed. Or you can use laparoscopic technology for surgical fixation of testicles, which reduces the degree of trauma and pain of patients to a certain extent. 2. Fast recovery after surgery: patients can consume fluids 6 hours after surgery and easy-to-digest food the next day. After the operation, patients can keep the perineal incision dressing dry. Unilateral cryptorchid surgery is not a major surgery according to the rating of the surgery, but it depends on the patient’s condition and the level of the hospital, for example, high blood pressure, heart disease and other basic diseases can increase the difficulty of the surgery, and any surgery has a certain risk, patients needing surgery are recommended to go to a professional hospital, and actively cooperate with the doctor.