Before varicocele surgery, do all kinds of examination, skin preparation, preoperative diet, indwelling catheter, psychological preparation and so on. 1. Various examinations: including cardiopulmonary function, biochemical examination, immune function examination, electrocardiogram, coagulation tetrad, etc. to rule out contraindications to surgery. 2. Skin preparation: shave the private parts and keep the local skin clean and hygienic. 3. Pre-operative diet: eat a light diet the day before surgery, prohibit spicy, tobacco and alcohol, eat more vegetables and coarse fiber food. Routine fasting for 10 hours before surgery, water fasting for 4 hours. 4. Indwelling urinary catheter: It is necessary to indwelling urinary catheter before surgery. 5. Psychological preparation: patients should keep a pleasant mood and avoid tension and anxiety. Before varicocele surgery, it is recommended to follow the doctor’s instructions to make all the preparations, which is conducive to the smooth progress of the operation.