Hello, My boyfriend and I have been best friends for a while now. We hit it off instantly upon meeting, but didn t start dating until a week ago. We ve been having sex for about 4 hours every night. His right testicle is swollen & noticeably larger than the left. There is a small lump on the top of the testicle. This did not appear until we started having sex and at that rate. What might this lump be? The sex is unprotected. I have been tested for std s in the past 6 months. I have known my boyfriend for quite a while before the relationship started. He s had 5 other partners. Any idea as to what wer e dealing with?
Thanks for asking in Chat Doctor forum. In short: I think you are describing the normal anatomy of testis. Explanation: I donor think anything is wrong with your boyfriends testis for now. If he has swelling he had visited doctor. If you had STD and thinking of STD now also for him, visit a doctor and get investigated again.  Good luck