Does it hurt to have an erection?

No, an erection is a natural part of being a functional male and getting erect does not hurt as long as the guy is not stupid and somehow restricts it like in pants or pushes down on it- some guys are not bright and think a penis should point straight out when the optimum angle for sex is nearly vertical.

Depends on age, the shape, how long you've had the erection, things like that. Normally it doesn't hurt. It's just really awkward to move around with one. If it hurts while you have an erection that means something is wrong and yes that does happen to quite a few men. So to answer you most guys it doesn't hurt, some guys it does hurt.

Who is asking any guy who has ever had a stiff one will know that the answer is no.

No, it does not hurt, providing the foreskin is not so tight that it prevents the glans (penis head) from being able to be freely exposed on erection (a condition called phimosis).

The second most painful thing i have ever had the unfortunate opportunity to experience

It depends. If you're wearing jeans it may because your penis moves when you walk and it ends up all over the place and if you get a ***** then it may be in an uncomfortable position and it may hurt. But if your wearing nothing it doesn't hurt at all. Feels good to be honest. Feels better with a hand or mouth on it.

It never did for me. Sadly I haven't had an erection in two years.

No. Sometimes I even find it pleasurable. Even though it can be annoying.

Yes - and - no.