Are sperm afraid of heat?

The male genital system has its own cycle rules. Many men will find that their scrotum will loosen when it is hot and come together when it is cold, so this is a very strange phenomenon. In fact, the genital system is also very afraid of heat, and if you stay in a hot environment for a long time, it will greatly reduce the quality of sperm and the chance of survival, so be sure not to let your body get cold, and choose loose pants when wearing them.

Sperm must be at a temperature 3-5°C lower than normal body temperature, that is, generally speaking, the most suitable temperature for male testicles is between 34°C and 35.5°C, in order to produce a large number of healthy sperm. If the temperature of the testicles reaches 36°C or higher, it will definitely cause heat stroke to the sperm, thus affecting the quality of the sperm and even causing male infertility.

Working in a high temperature environment for a long time will definitely affect the survival rate of sperm. Therefore, some men with occupations such as chefs and drivers need to pay more attention to heat dissipation in summer to prevent their testicles from being exposed to high temperatures for a long time.

The testicles in the scrotum are where sperm are produced, and the epididymis is where sperm is stored. Under normal circumstances, the scrotum acts like a temperature regulator. When the temperature decreases, the skin of the scrotum contracts and thickens, bringing the testicles closer to the body, and the temperature of the environment around the testicles increases.

When the temperature rises, the skin of the scrotum relaxes and becomes thinner, and the testicles sag and leave the body, strengthening the heat dissipation function, reducing the temperature of the environment around the testicles, and basically keeping the temperature in the scrotum stable at 32 degrees Celsius to 33 degrees Celsius.

Under normal circumstances, the testicles produce approximately hundreds of millions of sperm every day, and the testicles are extremely sensitive to the influence of temperature. Once the temperature around the testicles rises abnormally for some reason, the spermatogenic function of the testicles may be impaired or the spermatogenic epithelial cells of the testicles may degenerate, resulting in abnormal semen.

High temperature damages sperm, which is mainly manifested by a decrease in sperm density in semen, a decrease in sperm motility, an increase in abnormal sperm, and in severe cases, azoospermia. Due to the above-mentioned changes in semen quality, the fertilizing ability of semen is reduced, which often leads to infertility.