How long does sperm survive outside the body?

Many people think that smoking and drinking are the signs of masculinity, but medical experts believe that this will cause great harm to the male body. In particular, long-term smoking and drinking will greatly reduce the quality of sperm and shorten the survival time of sperm. Especially when preparing for pregnancy, sperm can survive for a few weeks. If the body is damaged for a long time, sperm may cause a large-scale problem. Let's find out how long sperm can survive outside.

How long can sperm survive outside the body? The survival time of sperm outside the body varies from person to person.

The survival time of sperm outside the body actually varies from person to person and is also related to the external environment. Sperm can survive in semen after ejaculation for about 24 hours. If the temperature is lowered, semen can also be stored for several weeks. The following is the survival time of sperm in different environments:

1. Survival time of active sperm in 37℃ environment: 4 to 8 hours or more;

2. Survival time of active sperm in the vagina: 0.5 days;

3. Survival time of active sperm in the cervix: 2 to 8 days;

4. Survival time of active sperm in the uterus and fallopian tube: 2 to 2.5 days.

5. If the temperature is lowered, sperm can survive for several weeks; if frozen with liquid nitrogen, sperm can survive longer and can even be stored for a long time.

How long can sperm survive outside the body? Sperm's fertilization ability only lasts for 20 hours.

When sperms rush up to the uterine cavity, their number is only 1%-5% of that at ejaculation. Why is this? Because sperms that remain in the semen during ejaculation can be protected by a large amount of fructose and enzymes that decompose sugars in the semen. When sperms enter the uterine cavity, they leave the semen and their living conditions are far worse than those in the semen. Therefore, their life span is greatly shortened. Sperms of poor quality move slowly and cannot reach the uterine cavity quickly, and they lose their vitality. After passing through many levels, there are only a few sperms that can finally reach the fertilization site in the fallopian tube.

However, once the sperm enters the fallopian tube, it has a strong fertilization ability. Of course, only 1-2 sperms are lucky enough to combine with the egg, and the rest of the sperms die within 24-36 hours. Only the sperm stored in the crypts of the cervical mucosa can live for 2-6 days, but even so, its fertilization ability has basically been lost, because the fertilization ability of sperm can only be maintained for about 20 hours.

Sperm is like the human body. Some sperm have strong receptive capacity while some are very fragile. Generally speaking, bad sperm can easily cause death when discharged from the body. Therefore, it is recommended that all male friends take care of their bodies and do not smoke or drink.