My husband has a little red bump on the head of his penis. it is not a pimple and doesnt itch or bother him at

all. its been there for a few weeks now. its not an STD for sure because besides the fact that i know im the only woman hes been with in the past 2 years, and i was a virgin before we ever did anything, he has recently had a mandatory STD test for his job. anybody have any idea what this could be? should he get it checked out?|||i think he should get it checked out, just to be on the safe side. how is he sure it%26#039;s not a pimple? what did his STD test tell you? what kind of job did he have a STD test for?! never heard of that...