Hey guys... I've noticed this has happened more than once but every time it happens its only one, I have a small bump on the lower bottom of the shaft. My ex-girlfriend got pregnant by me and was tested and came out clean for STDs so I know its not that (I hope) but I'm really worried my new girlfriend is going to see it and think I have STDs...
I started getting them (one at a time) since around the 5th or 6th grade... Please help me, I'm scared to go to the doctor I would rather die then be diagnosed with an uncurable disease.

Please help...