According to the survey data of the national health department, the current infertility incidence rate in China is 10% for one year, 15% for two years, and 25% for no children in 10 years, and fertility problems are still one of the main sources of various tragedies and comedies in China. It is in large and medium-sized cities that there are many divorces due to lack of children. According to the National Research Center, in a statistical survey of 1,000 divorcees in Beijing, nearly 30 percent of them were divorced because of their inability to have children. If this is true in Beijing, which is more open-minded and advanced, it can be imagined in other regions. In adult men, about 40% of primary infertility and 80% of secondary infertility suffer from varicocele. Varicocele can lead to local temperature rise in testis, causing degeneration of spermatogenic tubules and affecting spermatozoa; venous blood stagnation and CO2 accumulation in testicular tissues affect spermatozoa; blood from renal veins returning from spermatic veins contains metabolites secreted by kidneys and adrenal glands such as steroids, catecholamines and 5-hydroxytryptamines can cause vasoconstriction, resulting in premature sperm shedding; bilateral interpillar veins have abundant The toxins in the left spermatic vein can affect the spermatogenesis of the right testis. Therefore, varicocele is the main culprit of male infertility. It deprives a significant number of men of their “father’s rights”. ”What is the best treatment for varicocele?” It has become a major concern for many infertility patients. The prerequisite for successful treatment is to clarify the cause of varicocele, which occurs mainly because of: 1) weakness of the vein wall and adjacent connective tissue groups or underdevelopment of the levator muscle; 2) defective or incomplete closure of the valves of the spermatic internal veins. This causes the reflux of venous blood. Therefore, to cure varicocele fundamentally, we must eliminate venous reflux and restore normal blood circulation to the testicles. In general, the vein with reflux and varicocele is the internal spermatic vein, so the treatment of varicocele is to block all the reflux of the internal spermatic vein, and the testicular venous blood returns through the external spermatic vein, and the testicular artery and lymphatic vessels need to be preserved intact to ensure sufficient arterial blood supply and lymphatic return to the testicle to avoid testicular ischemic atrophy and syringomyelia. Traditional transinguinal approach, retroperitoneal approach spermatic vein ligation, and laparoscopic spermatic vein ligation all have the possibility of residual spermatic veins, testicular artery injury, and lymphatic vessel injury. The postoperative recurrence rate is as high as 25%, the lymphedema rate is 3%-40%, and the testicular atrophy rate is 0.2% after transinguinal internal spermatic vein high ligation. The incidence of testicular atrophy after retroperitoneal high spermatic vein ligation is also 0.2%, and the incidence of postoperative syringomyelia or scrotal edema and aseptic epididymitis is 6.6%. The main advantage of microscopic spermatic vein ligation is that it can easily ligate all the internal spermatic veins under a 10 times magnified view, preserving the testicular arteries, nerves and lymphatic vessels, thus completely blocking venous reflux and avoiding recurrence, while ensuring sufficient arterial blood supply, avoiding testicular atrophy and ensuring smooth lymphatic flow, preventing syringomyelia or scrotal edema and aseptic epididymitis. edema and aseptic epididymitis. Therefore, microscopic high level ligation of the spermatic vein is currently the preferred method of treatment for varicocele. After surgery, nearly 80% of patients have improved sperm quality and nearly 60% of patients have spontaneous pregnancy.