Bump on Penis

For several years I have had a bump on the bottom part of my penis about an inch up from the bottom. It has never hurt, and once about three years ago I tried to pop it and some dark cheesy discharge came out and it kind of went away for a few months only to come back. Lately, I have just ignored it, but the other day I started messing with it again trying to pop it. It never hurt but was just something that bothered me. I wasnt' able to pop it, and now it kind of hurts. Like a 1 on a pain scale of 1-10 whenever I rub it by walking. This happened about 3 days ago and now its got me worried. I have been dating the same girl for two years and have never cheated and I know she is clean because she gets tests for birth control every six months, but I still worry that it might be something serious. Is there any treatment I can do for it? Should I see a doctor? It is kind of hard and there is only one bump. It doesnt really look like anything I've seen online. It is now also a little red and inflamed since I tried popping it and is about the size of a small pea. Thanks.

[Alan Rockoff, MD]

I think it's a cyst, which is common in the area and  filled with a whitish, cheesy material.  My advice is to leave it alone and show it to a doctor, who will most likely tell you to ignore it.

Best.

Dr. Rockoff