bump on perianal area

I have a pea sized (or somewhat smaller) bump on the peri-anal area (outside of the anal area) that came up about two weeks ago. It is round and somewhat hard. It doesn't hurt and I haven't noticed bleeding. I have a back problem so I sit a lot and my stools are mostly soft occasionally slightly hard to pass but not terribly difficult. I can't check the color to see if it is pigmented or dark due to the back problem. Would someone tell me what this could be? I haven't had sex in a year and when I did it was with my monogamous husband. I have only had one partner and I don't have HPV. It is not an STD (trust me on that). We eat lots of vegies and whole grains, hardly any meat. I try to drink lots of water and/or tea and I take metamucil daily. I guess the other question is can you get anal cancer other than HPV if you never had anal sex?
thanks,
mkh9

[Dr. Kokil Mathur]

Hi! Well, yes, one can get anal cancer without anal sex. Without examining the lump, it is difficult to comment what it is. Here is a list of possibilities of what it could be. The lump could be a benign rectal tumor, a rectal abscess, genital wart or a hematoma.
Since it is pea sized, it can be a skin tumor like lipoma, neurofibroma too—both of which are harmless. Please consult your doctor for confirmed diagnosis. Take care!

[Dr. Kokil Mathur]

Hi! Well, yes, one can get anal cancer without anal sex. Without examining the lump, it is difficult to comment what it is. Here is a list of possibilities of what it could be. The lump could be a benign rectal tumor, a rectal abscess, genital wart or a hematoma.
Since it is pea sized, it can be a skin tumor like lipoma, neurofibroma too—both of which are harmless. Please consult your doctor for confirmed diagnosis. Take care!