Why does it hurt when sperm comes out?

like sometimes when i dont breathe in water my chest hurts.... and if i really breathe hard it hurts and then i cough. and i ...

i went to six flags on monday and went on a lot of rollercoasters. i been there lots of times before n i never had any proble...

I accidently spilled some ejaculate in my girlfriend's vagina and she is scraming with pain . Suggestions please

I was peeing just a few moments ago and when I was almost finished, I noticed that another substance was coming out and fell ...

when sperm hits the air do it die right away or do it dies in a hour or 2 ???

Why do cuts hurt so much x

After taking a piss, I then quickly discharged "came"n the morning I see my usual sperm in white but then I also notice a y...

when I move the belly botton ring up and down a lil puss comes out what does that mean

Does water intoxication hurt? when you drink to much water. does it hurt when you dying from it?

I've been hurting in my lower left side an my lower stomach barely above my pelvic area for the past eight days, the pains co...