I am a 38 year old Caucasian male that is generally healthy. I went to a nudist resort yesterday and was out in the sun all day. I also had sexual intercourse with a female twice. I put SPF 30 sunscreen on my penis during the day but I also tanned it in a tanning bed two days ago, no sunscreen. Now this morning I have what appears to be a Sun Spot on the gland of my penis, on the top. It s purple in color, round, and the diameter just slightly smaller than a pencil eraser head. There s no raised skin. No crater. No irritation. It s not itchy or sensitive. No other symptoms other than color.