Survival time of sperm in vitro

summary

A friend asked me how long the sperm survived in vitro. Her husband ejaculated the sperm on the bed sheet. I don't know if he would be pregnant,. So how long does the sperm survive in vitro? Let me tell you.

Survival time of sperm in vitro

First of all, the survival time of sperm in vitro environment is different according to the environmental temperature, dry humidity and different object surface, but in principle, the limit time is 24 hours (the ideal state of non female body), such as the time on the sheet is generally less than one hour. Even if the semen on the bed sheet comes into contact with the female pudenda, the probability of pregnancy is very small. If you take proper contraceptive measures, you don't have to worry about the semen on the sheets.

Secondly, according to the condition analysis, the sperm of male can only live for 24 hours at most in vitro, the fertilization ability can be maintained for a shorter time in vitro, the semen can be dried rapidly on the sheet, the semen can not protect nutrition, and the survival time is shorter. Don't worry, sperm only into the fallopian tube, has a strong ability to fertilize.

Finally, the experiment proved that the sperm can survive for more than 48 hours in the body of the woman, and the egg can survive for 12-24 hours in the body of the woman. The survival time of motile sperm in 37 ℃ environment: 4-8 hours or more; in vagina: 0.5 days; in cervix: 2-8 days; in uterus and fallopian tube: 2-2.5 days; in pillow towel: 9 minutes under normal temperature;

matters needing attention

The survival time of sperm in vitro is generally within 72 hours in vivo, but in vitro, if there is no suitable temperature for its survival, it will soon die. And the external environment is not conducive to its survival.