Some questions can be accurately answered based on very minimal information -- in this case, maybe the title you chose for your question. Nobody in the world has ever been known to catch HIV or other STIs from a massage, assuming the massage did not include overt sexual activity (intercourse, a "happy ending" by oral sex, etc. There is no possibility your hand wart is from the massage. Even if we accept the very slim possibility that occurred, the genital (sexually transmitted) types of HPV rarely if ever cause infection on the hands, feet, etc. Virtually all such infections are due to non-sexually transmitted HPV infections, usually with HPV type 1 (the same type that causes most childhood warts). Assuming your self-diagnosis is correct, almost certainly you are experiencing a recurrence of a childhood hand wart infection. In addition, you are correct that hand warts are rarely if ever self transmitted to the genital area.

As implied, you might consider seeing a doctor (ideally a dermatologist) to confirm the diagnosis. If the finger lesion is highly typical, your self diagnosis probably is correct -- but it cannot hurt to have professional confirmation. There are skin bumps and lesions other than warts.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD