I have one small skin colored bump on the shaft of my penis. It has been there a few weeks that I have noticed. It is skin color,smooth looking, and does not hurt. Now has some dry skin on it. I have googled every std and skin condition I could find. I can't seem to find anything that looks like it. I have been with the same partner for almost 5 years. We are faithful. Although I have had many partners in the past. But we are talking 4-5 years ago. She has been to the gyno recently and has had a pap smear and doesn't have any problems. Is there some skin condition? We do have sex regularly and I do masturbate quite a bit as well? Could it be friction ? Help!

*** photo not proper for web site, it has been deleted.