LELO tells: How long can sperm live in the vagina

A woman can only become pregnant when sperm and egg meet and combine to form a fertilized egg. A man may ejaculate hundreds of millions of sperm at one time, but only one or two of these sperm can combine with the egg. The others die due to the acidic environment of the female reproductive tract. So how long can sperm last in a woman's body?

Generally speaking, sperm can only live for no more than 8 hours in a woman's vagina. Then only a small fraction of the sperm will escape and continue on their way. Why is this? Because when a man ejaculates, the sperm in the semen can be protected by a large amount of fructose and enzymes that break down sugar in the semen. However, when the sperm enters the uterine cavity, it leaves the semen. The living conditions at this time are far worse than those in the semen, so its lifespan is greatly shortened. Poor quality sperm moves slowly and cannot reach the uterine cavity quickly, thus losing its vitality.

So, after the sperm enters the female body, how long can the sperm survive in the female body? Experts say: After the sperm passes through many checkpoints, only a few sperm can finally reach the fertilization site in the fallopian tube. However, as long as the sperm enters the fallopian tube, it has a strong chance of fertilization.

ability. Of course, in the end only 1-2 sperms are lucky enough to combine with the egg, and the rest of the sperms will die within 24-36 hours. Only the sperm stored in the crypts of the cervical mucosa can live up to 2-6 days. Even so, its fertilization ability has been basically lost because the fertilization ability of sperm can only last for about 20 hours.

The egg has the strongest fertilization ability within 15-18 hours after being released from the ovary, and can maintain its fertilization ability for about 30 hours. After that, the egg begins to degenerate, and its fertilization ability rapidly weakens and disappears.

Although sperm ejaculated into the female reproductive tract can survive for up to 4-5 days, its strong fertilization ability lasts only 1-2 days. That is to say, conception is only possible if sexual intercourse occurs within 1-2 days before or after a woman's ovulation. This is very important for guiding the sexual life of infertile couples. Some couples have no problem with their reproductive function, but they remain infertile for several years after marriage because they ignore the opportunity to conceive.