Hi and welcome. Well, it is always hard to say. Believe it or not, little bumps and such are not uncommon in the genital region. There are several causes. That yours are not painful is great. They will likely resolve on their own. Could be an ingrown hair even where you don't think there are hair follicles, it could be a clogged sweat gland, could be a little cyst, could be something called molluscum which resolves on its own and doesn't really sound like you describe. I'd try not to worry and keep an eye on it. If they develop pus, scab over with a crust or become painful, see your doctor. And if you are worried about them now, then see your doctor. wishing you luck hon