If one testicle is damaged, one can be fertile.

If male friends' testicles become diseased, it will reduce the chance of fertility, and even cause many male friends to lose their original fertility, and there is no way to improve this situation. If the treatment effect is not good for a long time, the inflammation in the male friends' bodies will become more inflammatory, and eventually they will be induced to suffer from the disease of necrozoospermia.

If epididymitis is not treated for a long time or is not cured for a long time, it will cause azoospermia or dead sperm, which will lead to infertility and make male friends lose their fertility. Not only that, the inflammation will also be transmitted to women, causing serious gynecological diseases.

Epididymitis can cause a decline in male sexual function. In severe cases, it can also lead to loss of sexual function, causing great trouble to the sexual life of couples.

Epididymitis can also induce other serious diseases, such as prostatitis, seminal vesiculitis, varicocele, nephritis, endocrine diseases, etc. If the situation is serious, it can also cause malignant tumors, threatening the lives of male friends.

The diseased epididymis will become swollen and form epididymal induration. If severe, it will form an abscess, which will affect the skin of the scrotum. In addition, it will also cause unclear demarcation of the testicles and thickening of the vas deferens. If the epididymis on both sides has tuberculosis, it will also cause azoospermia, leading to infertility.

The testicles must be below body temperature in order to produce normal sperm. The testicles are first formed in the embryo. During the development of the embryo, the testicles gradually begin to move downward until they reach their final position. If some babies develop abnormally and their testicles have not descended to where they should be after birth, surgery will be required.

Without surgery, testicular cancer is possible. And it must be done early. If the testicular body temperature is too high after a certain age, the man may lose his fertility. Similarly, if a man often wears tight underwear, the testicles will be tightly wrapped in the underwear, and the temperature will affect the quality and quantity of sperm, thus affecting reproductive capacity.

When the weather is hot, the testicles will droop. When the weather is cold, the testicles shrink closer to the body. When approaching the climax of sexual life, the testicles will also rise close to the body due to muscle contraction.