I noticed this about 4 days ago and it's getting bigger and more tender! It's on the lower left side on the back of my penis and it started as the size of a poppy seed and is now the size of a pencil eraser. It is red with kind of a whitish center barely showing through. Tried squeezing it and nothing happened it just hurt is all. Anyone else ever had one of these, if so what is it and will it go away, without the help of a doctor? I am 30 years old if that helps at all. Thanks!

This sounds like herpes.

Wow, it's that "cut and dry" is it? Wouldn't herpes be the popular assumption?

Well thanks.

Just get it checked out if there is only one it could be a swollen sweat galn

It sounds like a boil from an ingrown hair or a pore which has been infected go to your doctors and they'll give you some antibiotics for it