length of a sperm's life

[SanRemo0621]

when sperm hit the air...is it true they die right away??? say I cum outside of my gf...how long does it take for the sperm on my penis to die

[Cornelius111]

Once the semen dries out the sperm should be dead. So if the wet spot is no longer wet then the sperm should all be dead. If you want to make sure the sperm are off your penis go lather up real quick with some soap and rinse them away. Inside the woman it has been suggested that they may live up to seven days, but usually many die by that time. The best chance of pregnancy is about 1-3 days before ovulation, so I expect that after 3-4 days most sperm inside the body die, but now I'm just rambling. To answer your question: once the semen dries out the sperm should be dead. If you would like to be sure they are all gone go wash your penis. Additionally, since some my still be present in your urethra(the tube through which sperm are delivered and you go to the bathroom) then going to the bathroom should remove all the sperm that remain inside your penis as well.

[demonbuttercup]

here are a couple of tidbits i found

some sperm can live in the gland near the head of the penis, called Cowper's gland, and that is viable for up to 96 hours.

So how long do sperm live outside the body? It depends upon the environment. In a warm moist environment - possibly many hours; for a dry environment - they may just die straight away.

sperms are very fragil and become all dead by about 6 hours outside the body

hopefully those will give you some idea

[SanRemo0621]

thanks guys