The first laparoscopic high ligation of the spermatic veins was successfully performed in 1992. Indications: children and adolescents with varicocele of more than adolescent degree; recurrence after open surgery? Contraindications: history of major abdominal and pelvic surgery, severe cardiovascular and respiratory diseases, poor liver and kidney function, chronic infectious diseases; laparoscopic techniques for peritonitis should be considered as a relative contraindication when the technique is not mature, intestinal adhesions or combined with abdominal organ pathology; preoperative preparation Preoperative skin preparation of the abdomen and genital area, fasting, oral laxatives, evacuation of intestinal contents to provide a good operating space and visual field, emptying of the bladder before anesthesia, and the possibility of leaving a catheter in place Choice of anesthesia Adults can choose epidural anesthesia Children and adolescents should take general anesthesia with endotracheal intubation: provide good muscle relaxation, satisfactory pneumoperitoneum and operating space Laparoscopic treatment Material of varicocele Spermatic vein ligation At home and abroad, spermatic vein ligation is mainly done with titanium clips, absorbable clips and silk ligation, each of them has its own advantages and disadvantages Tissue reaction: wire ligation > titanium clips > absorbable clips Absorbable clips: more expensive, use special applicators, titanium clips: convenient and time-saving, but metal remains in the body, which can cause incomplete clamping of titanium clips Silk ligation, relatively large tissue reaction in the body, but Ligation is stronger, less likely to loosen, safe, reliable, no metal residue, economical and convenient, less damage, and also can train the operator’s skills