Varicocele is a common male disease in daily life, and this disease can easily lead to infertility. So why does varicocele cause infertility? Let's take everyone together to understand the relevant reasons.
1. Insufficient nutrition supply. When varicocele occurs, the blood circulation in the testes is affected by blood retention, which can lead to a lack of necessary nutritional supply in the testes and affect the production and production of sperm.
2. Cause metabolites to inhibit spermatogenesis. The countercurrent flow of the blood in the left spermatic cord vein brings the metabolites secreted by the adrenal gland and kidney, such as steroids, catecholamine, and 5-hydroxytryptamine, to the testes. Steroids can inhibit spermatogenesis, catecholamine can cause chronic poisoning of the testes, and 5-hydroxytryptamine can cause vasoconstriction, premature shedding of immature sperm, and male infertility.
3. Causes an increase in local temperature in the testicles. The retention of blood in the spermatic vein can lead to an increase in local temperature in the testicles, and the normal temperature that the testicles can withstand is limited or even lower than the human body temperature, which can easily affect the testicular spermatogenic function and cause abnormalities in sperm and semen.
4. Affects testicular function. The varicocele on the left side will also affect the function of the right testis. There are abundant anastomosis of testicular veins on both sides. Toxins in the left blood can reach the right side and affect spermatogenesis of the right testis. This reduces male fertility and leads to male infertility.