How long can sperm survive outside the body?

How long can sperm survive outside the body? The fusion of sperm and egg cells from men is the beginning of a human being. Sperm exists in the body, so how long can sperm survive outside the body? Can sperm lead to pregnancy? How long can sperm survive in the body of a woman?

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

In fact, the survival time of sperm outside the body is not necessarily the same for everyone, because it is also closely related to the quality of sperm and the external environment.

1. The survival time of male sperm outside the body is generally 4 to 8 hours in a natural environment at 37°C. Male sperm can survive for about 24 hours in the semen of a man's ejaculation. If the temperature is reduced, the semen can also be stored for several weeks.

2. The survival time of active sperm in the vagina: 0.5 days.

3. The survival time of active sperm in the cervix: 2 to 8 days.

4. The survival time of active sperm in the uterus and bilateral fallopian tubes: 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.

2. The fertilization ability of male sperm

After sperm enters the fallopian tubes, it has a strong fertilization ability, but only 1-2 sperm are lucky enough to fuse with the egg cell, and the other sperm die one after another within 24-36 hours. Only the sperm stored in the crypts of the cervical mucosa have a lifespan of 2-6 days, but even so, the fertilization ability is basically lost, because the fertilization ability of sperm can only last about 20 hours.

3. Can male sperm cause pregnancy outside the body?

Many people do not know how long sperm can survive outside the body, and they worry whether the sperm residue on the condom will cause their girlfriend to get pregnant. If safety precautions have been taken, if "fate" still occurs, I believe everyone will feel very bad! So can sperm outside the body cause pregnancy?

In fact, there is no need to worry about this. A normal man excretes hundreds of millions of sperm in his semen, and most of them will die in the acidic and alkaline environment soon after entering the reproductive system.

The survival time of sperm outside the body will not exceed one day at most, usually about half an hour, and will not exceed one day, so men do not have to worry about the threat caused by the retention of sperm in the genitals.

Sperm can survive outside the body for about 30 minutes, but without ejaculation, the chances of pregnancy are very low.

However, the editor still recommends that it is best to use contraceptive methods when couples have sexual intercourse.