Due to the characteristics of the anatomical structure, as well as various factors such as male physiological development, the blood vessels of the spermatic vein are easy to stagnate and expand, forming an earthworm-like vein group, which is called varicocele.
When the spermatic veins are varicocele, the harmful substances produced by the testicular metabolism cannot be discharged in time, nor can they get enough nutrients, which will damage the normal testosterone secretion function of the testes and reduce the testosterone secretion. Testosterone is the driving force for maintaining male sexual function and producing sperm . Once it is lacking, it will inevitably lead to male sexual dysfunction and infertility.
In the case of varicocele, about 50% to 80% of the patients have abnormal semen examination, which is characterized by low sperm count, low activity and abnormal shape. The reasons for infertility caused by varicocele are: when the varicocele is stagnated due to the blood stasis in the vein of the spermatic vein, the temperature in the scrotum can increase, and the temperature of the testis can increase by 1 ° C to 2 ° C. The temperature continues to increase for a long time, which can affect the testis. Produce sperm, leading to azoospermia and oligospermia; at the same time, the high temperature environment of the epididymis is not conducive to the maturation of sperm.
In addition, sitting on soft chairs such as sofas for a long time can also easily cause varicocele, which in turn affects fertility.
The original sitting posture of human beings is based on the two nodules of the ischia as the support points. At this time, the scrotum is easily suspended between the two thighs. However, when sitting on a sofa or other soft chairs, the original fulcrum sinks, and the entire buttocks sink into the body. In the sofa, the stuffing and surface materials of the sofa will surround and compress the scrotum. When the scrotum is compressed, the venous return will be poor, and the blood vessels near the testicle will become thicker. When the blood stasis is severe, it will lead to varicocele. Symptoms such as heavy testicular descent and dull pain in the lower abdomen appear.
At this time, due to blood stasis, the pressure in the spermatic vein increases, and the lack of oxygen and nutrients affects the removal of metabolites, thereby affecting spermatogenesis and maturation.