How long does the sperm in semen stay alive when in contact with normal air?

Question

I've heard that the sperm dies after a few seconds. If so, how do they collect sperm when you donate it?

Please answer both questions.

Answer 1

Sperm are thought to retain fertilizing capability for up to 48 hours once they have entered the female genital tract, but it's possible their lifespan is even longer.

When sperm is shot outside of the body it has a very short lifespan. Sperm required moisture to live. Once sperm is dry, the spermatozoa die.

As far as donated sperm: Donted sperm is frozen at at least Minus 325 degrees. Between 50% to 80% of sperm die in the freezing process. Sperm survival varies a great deal from individual to individual and from ejaculate to ejaculate. As long as freezing conditions remain at a constant temperature, sperm can survive the freezing process indefinitely. Those sperm that die do so within the first 48 hours of freezing, and the attrition rate thereafter is very slight. Frozen semen can be stored for as long as 50 years without additional sperm deterioration beyond that caused by the original freezing process.

Answer 2

How long can sperm can probably live outside of the body? Probably about an hour. The rule of thumb most health educators use is to avoid contact with semen and other bodily fluids while they are wet. This is not only because there may be active sperm, but because there may be bacteria and virus that are still alive in the fluid. Just to be safe, it is best to use precautions around dried bodily fluids as well. This means not allow the fluid to come into direct contact with your skin.

Can you get pregnant when you do not have intercourse? Absolutely. It happens all the time with artificial insemination. But in those cases, doctors are using instruments to get the sperm to their final destination. It's less likely to occur if you accidentally sit on some wet semen or if your partner ejaculates outside of your vagina. But it is not impossible. All the little buggers needs is a warm wet environment, and who knows what they can accomplish. The fluid that comes out of the penis before ejaculation, is pre- ejaculate. It can contain sperm, and therefore it is possible to get pregnant even if the man withdraws before he ejaculates.

To be safe you should avoid getting sperm on your partner. Not just to avoid pregnancy, but also to prevent the spread of sexually transmitted diseases. Plus, it's a pain to clean up.

Now, sperm can live inside of a woman's body for two to five days, or up to a week if they reach the fallopian tubes. A woman's reproductive tract is hostile territory for sperm. The pH of the vagina kills off most of them, and of the one percent that make it past the mucus plug at the bottom of the cervix, most end up in the wrong tube. Given the vagina's apparent hostility towards the sperm, and the sperm's poor sense of direction – it seems like getting pregnant is a difficult thing to do. But the one million unplanned teen pregnancies and 1.5 million abortions that go on in the US every year suggest otherwise. A couple having unprotected sex for a year have an 85 to 90 percent chance of getting pregnant. After all, the egg, is about 85,000 times bigger than the sperm cell. It's not that hard to spot.

Answer 3

Sperm stays alive for about 1 hr given the presence of moisture and the semen does not dry up... once it dries up it's off to sperm heaven. :-) I believe that sperm can be frozen right after the donation and put into liquid nitrogen and thawed later for "use".

Answer 4

1 - 3 hours

Answer 5

24 hours

Answer 6

i dont know exactly how long. sorry. but i do know that ist more than a few seconds and as for the other question, they colletct it easily because its more that a few seconds.