How long can sperm live in the urethra? if a man ejaculates, how long does the remaining sperm stay motile (alive) in

if a man ejaculates, how long does the leftover sperm stay motile (alive) contained by the urethra. which leads to whether or not the pre-ejaculate will contain any motile sperm if any at all if the man does not urinate.?
Answers:    Patrick is 100%correct.
In a friendly environment (either the urethra or the vagina), sperm can live up to 36 hours. Once you urinate, any sperm surrounded by the urethra will either be flushed, or killed by the bitterness of the uric acid.

Pre-ejaculate can contain sperm, but at a much lower level than semen.

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