The principle of varicocele ligation is to ligate the veins of the spermatic cord. After ligation, the dilatation and tortuosity of the veins will be reduced, the local temperature rise will be lowered, the phenomenon of backflow of blood will become less, the accumulation of carbon dioxide in the testicular tissues will be reduced, and the concentration of catecholamines, cortisol, and prostaglandins in the blood will be lowered, and the normal spermatogenesis of the testicles can be restored effectively. It is recommended that if you decide to have varicocele ligation, you should choose laparoscopic high varicocele ligation and microscopic varicocele ligation. Both procedures have a higher success rate, lower recurrence rate after surgery and are less invasive.