How long can sperm survive outside the body?

How long can male sperm survive outside the body? Do you know? Does the survival time of male sperm outside the body vary from person to person? How long can the fertilization ability of male sperm last? What are the reasons for reducing sperm survival rate? How long can male sperm survive outside the body? With these doubts, let us read the detailed introduction of the article below!

How long can male sperm survive outside the body? How long can male sperm survive outside the body?

How long sperm can survive outside the body varies from person to person

The survival time of male sperm outside the body actually varies from person to person and is also related to the external natural environment. Sperm can survive for about 24 hours in a man's ejaculated semen, and if the temperature is reduced, the semen can also be stored for several weeks. Below is the survival time of male sperm in different natural environments:

1. The survival time of active sperm in a 37℃ natural environment: more than 4 to 8 hours;

2. Sperm survival time in the vagina: 0.5 days;

3. Sperm survival time in the cervix: 2 to 8 days;

4. The survival time of active sperm in the uterus and bilateral fallopian tubes is 2 to 2.5 days.

5. If the temperature is lowered, the sperm survival time can reach several weeks; if liquid nitrogen is used for refrigeration, the sperm survival time can be longer and can even be stored for a long time.

The fertilization ability of male sperm only lasts for 20 hours

When the sperms of men happily ascend to the uterus, their total number is only 1%-5% of the ejaculated sperms. Why is this? Because the sperms of men who ejaculate and remain in the semen can get a lot of glucose in the semen.

Protected by the enzymes that dissolve sugars, when the sperm enters the uterus, it leaves the seminal cavity. Its living environment is far worse than that in the seminal cavity, so its lifespan is greatly reduced. Sperm of poor quality moves slowly and cannot reach the uterine cavity quickly, thus losing its vitality. After going through the Daozi copy, only a few male sperm can finally reach the bilateral fallopian tube fertilization position.

However, as long as the sperm enters both fallopian tubes, it has a strong fertilization ability. Of course, in the end only 1-2 sperm are lucky enough to fuse with the egg, and the rest of the sperm die one after another within 24-36 hours. Only the sperm stored in the folds of the cervical mucosa can live for 2-6 days. Even so, its fertilization ability is basically lost, because the fertilization ability of sperm can only last about 20 hours.