Blood in semen lasted 3 weeks for me after transrectal biopsy (was told it could last up to 6 weeks, maybe if you don't try flushing it out as often as I did). Consultant said not to hold back ejeculating (might have been a hint it's a good thing, not sure). I did wait a day fearing it might be painful, but it wasn't.
First few days, it's bright red and quite horrific if you haven't been warned. If you are having sex with a partner, it might perhaps be polite to wear a condom, although (according to consultant) the blood is not harmful to a partner.
Then it turned rust coloured as the blood becomes stale (no fresh blood and the existing blood turns to different iron oxidation states which is same as rusty iron - just like a blood stain does as it ages).
It gradually faded back to normal after 3 weeks.
After transperineal biopsy, I held back 2 days before trying for an erection, given loads of needles had been pushed though base of penis, but again consultant said no need to hold back, and there was no effect caused by the needles when I did. By this stage I was on HT which reduces semen anyway. First time there was no blood, but subsequent times there was stale blood, although not as much as for the transrectal biospy. Again, took 3 weeks to clear, and it was always totally pain free.
Edited by member 24 Feb 2019 at 15:41
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