Currently, many major international centers have adopted microligation of varicocele as the standard procedure, which is gradually replacing traditional open surgery and laparoscopic surgery and is expected to become the “gold standard” of varicocele treatment. The specific procedure involves carefully separating the arteries, veins, lymphatic vessels and vas deferens with the help of microscopic magnification (10-20 times) and ligating only the veins without destroying other tissues. Compared with other surgical methods, the advantages are: 1. Since the G-sphere artery is very thin, less than 1mm in diameter, it is easily damaged and ligated during surgery, while operating under a microscope, the surgical field is magnified more than 10 times, and combined with microvascular Doppler intraoperative detection, the G-sphere artery can be easily identified and protected, avoiding complications such as postoperative testicular atrophy. 2.Traditional surgery in the retroperitoneal cavity or open the inguinal canal to find the spermatic vein, because some veins are branching out at the more distal end, then the surgery in these surgical positions can not completely ligate the abnormal varicose veins, and the chance of recurrence after surgery is higher, but through microsurgery, because the surgery is performed below the external ring mouth, all the vein branches can be completely divided and blocked completely, and the chance of recurrence after surgery The chance of recurrence after surgery is greatly reduced. 3. The incision of microsurgery is only on the outside of the external ring opening, so there is no need to cut through any muscle fascia such as the tendon membrane of the external oblique abdominal muscle and the levator muscle as in open surgery, and the pain level of patients after surgery is greatly reduced. 4. Scrotal edema after surgery is detrimental to semen quality, and once there is scrotal edema, the semen analysis results after surgery often do not improve well. Microsurgery can identify and separate the arteries, veins and lymphatic vessels well, and only ligate the veins, so the lymphatic vessels can be well protected, so the rate of postoperative scrotal edema is lower.