Do you know how long sperm can survive?

Generally speaking, when a man and a woman have sex, sperm ejaculated from the male body into the female body has a certain survival time. So, how long is the survival time of sperm?

Sperm survival time

Sperm survival time: Sperm can survive in the female body for 2-3 days

We know that the survival time of an egg is generally 24 hours, which is about 1 day. However, the survival time of sperm in a woman's body is longer than that of an egg, generally up to 2-3 days, and may be longer in some cases. Studies have shown that human sperm can only survive for a few minutes in the natural environment outside the body.

The sperm that directly enters the female body can still maintain vigorous vitality due to the relatively suitable environment, and its reproductive ability cannot be ignored within 2 days. This is probably the result of natural selection and evolution. The magical time difference also provides more possibilities for sperm and egg to meet and become fertilized eggs.

How long does sperm live in a woman's body?

Generally speaking, the life span of sperm in the female vagina does not exceed 8 hours. After that, only a small number of sperm will escape and continue to move forward. 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 decompose sugar in the semen. When the sperm enters the uterine cavity, it leaves the semen. At this time, the living conditions are far worse than in the semen, so the life span is greatly shortened. Poor quality sperm moves slowly and cannot reach the uterine cavity quickly, and loses its vitality.

So, after sperm enters the female body, how long can it survive in the female body? Experts say: After passing 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 fertilization ability. Of course, in the end only 1-2 sperm are lucky enough to combine with the egg, and the rest of the sperm will die within 24-36 hours. Only the sperm stored in the crypts of the cervical mucosa can live for 2-6 days, even so, its fertilization ability has been basically lost, because the fertilization ability of sperm can only be maintained for about 20 hours.

Although sperm injected into the female reproductive tract can survive for up to 4-5 days, its fertilization ability lasts only 1-2 days, which means that conception is only possible if sexual intercourse occurs within 1-2 days before or after ovulation.