Generally, as long as the testicle size is within the normal range, that is, no less than 1.25 cm after adulthood, it has no impact on sexual ability. But some people will ask: "The testicles can secrete male hormones. If the testicles are large, they must secrete more male hormones. If the sexual ability is not strong, how can we say that they are not related?"
It is undeniable that androgens do have an impact on sexual ability, but "large testicles lead to more androgens in the body; small testicles lead to less androgens in the body" is a big mistake for many men in sexual knowledge. Under normal physiological conditions, the concentration of male hormones in the human body will be regulated by the feedback of the gonadal axis (i.e., hypothalamus-pituitary-testis system). If the testis secretes too much male hormone, the gonadal axis system will receive signals to regulate and reduce the secretion of male hormone, and vice versa. That is to say, the human body will always adjust itself so that the male hormone in the body is just enough, neither more nor less.
But if the testicle size is lower than the normal level, it will affect the sexual ability. Generally speaking, when a boy is 10 years old, his testicles are less than 1 cm, which indicates that the testicles are abnormal. In this case, the testicle secretes too little male hormone, and the growth and development of the penis will also be affected, resulting in short penis; At the same time, the ability of testicles to produce sperm will also be greatly reduced. Therefore, parents must understand the testicular condition of the boy at the development stage. If any abnormality is found, they should seek medical treatment in time to avoid missing the best treatment opportunity. For adults, if the testicle is less than 1.25 cm, it may be testicular atrophy, and the secretion and sexual ability of male hormones will also be affected. You should seek medical advice as soon as possible.
In addition, it is not surprising that testicles are bigger and smaller. The two testicles of men are originally different in size. Generally, the left testicles are smaller, the right testicles are larger, and the left testicles are also slightly lower. The difference between the two testicles is not more than 20%. If it is beyond this range, you should also go to the hospital as soon as possible and carry out treatment under the guidance of a professional doctor.