What is the timing of sperm production?

Being able to successfully conceive a healthy baby is a particularly important matter for every family. However, in order to achieve eugenics and good parenting, we must improve the quality of sperm. At the same time, in order to be able to conceive smoothly, we must also master the time of sperm production. This will make it more convenient for us to prepare for eugenics and good parenting. Let's take a look at the time of sperm production.

Sperm production time

The development and maturation of a sperm goes through a complex process, which takes about 3 months. The main process takes place in the seminiferous tubules of the testis and can be roughly divided into three stages:

1. Spermatogonia proliferation and division stage: The most primitive stage of sperm is called spermatogonia, which is the stem cell that produces sperm and is located in the seminiferous epithelium of the seminiferous tubules. Initially, spermatogonia proliferate in the form of mitosis, 1 divides into 2, and 2 becomes 4. After 6 divisions, 1 spermatogonia proliferates into 64, which is called primary spermatocytes.

2. Spermatocytes undergo meiosis to become spermatids: Primary spermatocytes continue to divide. However, this time it is meiosis, that is, one primary spermatocyte divides into two secondary spermatocytes, but it is different from the proliferation division of spermatogonia because the chromosomes in the cell nucleus are not replicated. Therefore, each secondary spermatocyte only carries half of the original number of chromosomes, that is, 23 chromosomes, including one sex chromosome. The cell volume is also smaller than that of primary spermatocytes. Following this process, the secondary spermatocytes undergo another maturation division and become two spermatocytes. As a result, one primary spermatocyte divides into four spermatocytes, each of which carries a haploid number of chromosomes. At this point, one spermatogonia becomes 256 sperm cells.

3. Spermatogenesis stage: At the same time as the above-mentioned cell division, the sperm cells have gradually moved closer to the lumen of the seminiferous tubules. At this time, the sperm cells are still developing, but they no longer divide. However, they have undergone complex changes in morphology and become sperm with heads and tails, and enter the lumen. At this time, the development process of sperm in the testis is completed, which takes about 64 days. In the process of sperm formation, the supporting cells located in the epithelium of the seminiferous tubules play an important role in support, protection and nutrition. The supporting cells also secrete a globulin that specifically binds to androgens, thereby making the androgen concentration in the seminiferous tubules much higher than the concentration in the blood. Only in this suitable microenvironment can spermatogenic cells differentiate into sperm.

The sperm then travels along the seminiferous tubules into the epididymis, where it stays for about 2-3 weeks before developing into mature sperm that can move and fertilize. Therefore, it takes about 90 days for a spermatogonia to develop into a mature sperm.

The above is an introduction to the time of sperm production. After understanding it, in order to better promote eugenics and good parenting, both husband and wife must make physical adjustments before pregnancy, maintain good living habits and work and rest time, eat more light and nutritious foods, and men should try not to smoke or drink.