When does a man's penis stop moving?

Many male friends feel that their testicles are small when they are with their friends after they grow up. They worry whether there will be any problems and whether it will cause their sexual function to be weak. Boys are very worried about when they will grow and develop. So, when does a boy's penis stop growing and developing?

At what age do male reproductive organs stop growing and developing?

1. Generally, the male reproductive organs will stop growing and developing at the age of 20. However, this is also closely related to genetic inheritance. In addition to this factor, sufficient nutrients and adequate protein and zinc intake are also necessary to promote the development of boys.

2. Although the difference between men and women is finally determined at the beginning of the sperm and egg of the parents, the gender split does not begin until the second month of embryonic development. The male and female external genitalia can be identified only after about two and a half months. Three months after the birth of a boy, the length of the penis is only 3.5mm at most, and then it begins to accelerate growth and development.

2. Whether it is a boy or a girl, although it is decided when the parents are reunited. However, it is known that the test tube embryo begins to grow and develop and the sex is differentiated after 2 months, and the male reproductive organs are differentiated after more than ten days. Three months after the birth of a boy, the longest penis is 3.5mm, and then it grows and develops rapidly.

To put it simply, testicles are what are called male testicles in medicine. In fact, male testicles are male sex hormones and are key organs in the male body. Male testicles also determine gender. Without male testicles, you can be said to be a woman. This is why men who want to change their sex have to have their testicles removed.

Male testicles come in different sizes, so what size is appropriate? Are bigger the better?

In fact, for a man, if the testicles are very small, for example, less than 10 grams in size, in this case, because the testicles are very small, it will affect the production of sperm. The size of the testicles is generally around 15 grams, and it is useless if it is too large.