Sperm survival time is actually different from person to person, and it has something to do with the external environment.Sperm in semen after ejaculation can survive for about 24 hours. If the temperature is reduced, the semen can be stored for a few weeks.
How long is the sperm survival time?Many friends do not know the sperm survival time very well. Generally speaking, sperm survival in different external environment is different. Sperm survival in vitro is generally 37 ° C for more than 4 to 8 hours.Let's introduce it in detail below.
How long is the sperm survival time?Sperm survival time is actually different from person to person, and it has something to do with the external environment.Sperm in semen after ejaculation can survive for about 24 hours. If the temperature is reduced, the semen can be stored for a few weeks.The following is the survival time of sperm in different environments:
1, 37 ° C environment Sperm survival time: 4 to 8 hours or more;
2. Sperm survival time in the vagina: 0.5 days;
3. Mobility survival time in the cervix: 2 to 8 days;
4. Sperm survival time in the uterus and fallopian tube: 2 to 2.5 days.
5. If the temperature is reduced, the sperm survival time can reach a few weeks; if the liquid nitrogen is frozen, the sperm survival time can be longer, and it can even be stored for a long time.
How long is the sperm survival time?Sperm's fertilization ability only maintains only 20 hours
When sperm strives to reach the uterine cavity, the number is only 1%& mdash; 5%when ejaculation. Why? Because there are sperm in semen during ejaculation, you can get a large amount of fructose and decomposition sugar in semen and decomposition sugar in the semen.The enzyme is protected. When the sperm enters the uterine cavity, the semen is left. The survival conditions are far less than in the semen, so the life span is greatly shortened.Lost the vitality.After passing the way, the sperm can eventually reach the tubal fertilization site.
However, as long as the sperm enters the fallopian tube, it has strong fertilization ability.Of course, in the end, only 1 & mdash; 2 sperm was fortunate to be combined with eggs, and the remaining sperm died within 36 hours.However, the sperm stored in the cervical mucosa hidden nest can reach 2 & mdash; 6 days. Although so, its ability to fertilize has basically lost, because most of the sperm's fertilization ability can only maintain for about 20 hours.
(Editor in charge: Internship Chen Jing)
