obviously i have no way of examining you but one possibility would be a condylomata acumitum (a venereal wart). so yes this could be an std to see your medical provider so you can be properly examined diagnosed and treated.
possible std? . i developed a small growth about an inch from the base of my penis. it is pretty small and the top of it has flower petal-like tips that can be moved around a little bit. it does not hurt or itch at all. it is about a quarter of an inch around and about half of that raised up.