i am 29 years old and have had hair on the shaft of my penis it goes up about 1/2 to 3/4 the way up for as long as ive been growing body hair i shave it about once every two weeks and have noticed that the hairs get ingrown and cause raised irratated bumps where the hair grows out
I've never seen it happen, I'd get it checked, but there are some cases where people have bumps on their actual penis which happen to turn out to be where hair is growing in, but i've never actually seen a penis with hair on it.