With the significant improvement of quality of life, people have higher requirements for food, drink, and clothing, but many people easily overlook their underwear. In daily life, people do not have much demand for underwear, as long as it is comfortable, but they do not know that tight underwear has become a new sperm killer and one of the factors contributing to male infertility.
Sperm survival time varies at different temperatures
The scrotum of the male reproductive organ is surrounded by the testicles, which are the place where sperm are produced. Therefore, it can be inferred that the most suitable temperature for sperm to survive is the temperature inside the human body, which is 36.0 ℃ -37 ℃. It is understood that sperm can survive for more than 4-8 hours in a 37 ℃ environment; The survival time during vaginal activity is 0.5 days; The active survival time in the cervix is 2-8 days, and the active survival time in the uterus and fallopian tubes is 2-2.5 days. From this, it can be seen that the survival time of sperm is directly affected by temperature, and the higher the temperature, the faster the rate of sperm death.
Underwear can cause testicular temperature to rise sharply and strangle sperm
Whether the testicles produce sperm in the scrotum or the sperm survive in the body, they are all affected by temperature. Because of this, in hot summer, the scrotum will relax; When the weather is cold, the scrotum will shrink into a small, wrinkled mass, tightly against the body, and adjust itself with changes in temperature. But this balance is disrupted by tight underwear, which tightly wraps the scrotum, leaving it in a closed state. The lack of air circulation hinders the heat dissipation and cooling of the scrotal skin, thereby affecting the physiological function of the testicles, and may result in abnormal or even inability to produce sperm. At the same time, tight underwear restricts blood circulation, hinders spermatic vein reflux, and is very detrimental to sperm production and nutrition. Over time, it can easily lead to adverse consequences of future infertility.
It is worth noting that the choice of underwear varies depending on individual circumstances, such as for men who sweat a lot, pure cotton may not be the best choice. Because although pure cotton underwear absorbs sweat, it is not easy to dry, especially in summer. The sticky feeling in the vagina is not only uncomfortable, but it may also cause scrotum inflammation, which can cause itching and pain in the reproductive system. Therefore, men should not choose their underwear carelessly. Comfort and suitability are the key points.