A few days ago I noticed a extremely small bump on my penis, I m sure it can t be a virus of some sort, though it does scare me. It also causes slight discomfort but only when the actual bump is touched. On a scale of 1-10, 10 being most painful, the pain is maybe a 3 or 4. Its about ballpoint pen sized, ive only had one partner my entire life, Im 20. What could it be?