Im 30, 5'9", 290 lbs, hx of asthma, juvenile rheumatoid arthritis, and allergy to ASA. My question is, approx. 3 days ago I had a boil type bump appear on the underside of my penis. It is located about half way down the shaft. I have sterilized the area and sterilized a lancet, then lanced the bump. There was no pus but alot of blood and clear liquid. I am married and my wife and I are both STD free. This spot was slightly sore to touch, but has eased up after the lancing. I have shaved the hair in this area in the past, approx 3 weeks ago. Any idea what I could be experiencing?