Possibly folliculitis (hair follicle infection, which can result from shaving), but there are other possibilities. If painful, definitely he should have them examined.
Are you sure he shaves his penis? Not the scrotum or pubic area? I've heard and seen lots of things over the years, but not shaving the penis. I'm not implying critcism--but not much surprises me and I'm genuinely curious. Do other men do this?
Bottom line: He needs to see a health care provider.
HHH, MD
Well, first of all Doc, thanks for answering my question.
I would say most guys my age (young professinoals, yuppie's, metrosexuals) shave or at least trim their scrotum. There is hair at the base of the penis, at least on me that I shave. But I have no idea why a guy would shave the shaft of his penis, as to there is no hair on it.