<s>[INST] hi, i noticed a couple months ago that i have a couple areas around the shaft of my penis where there are very small black line veins breaking the surface of my skin.  they dont get bigger. It appears to be in the area where i was circumcised as a child.  Is this normal.  Im 40 years old.  No discomfort, no swelling, no fluid.  Also I can only really see it when I spread the skin apart....very hard to see. [/INST] Degree understand your concerns went through your details. Appearance of black / dark veins around the penis shaft is quite normal and there is nothing to worry about it. In all males this blood vessels are seen on the surface of penis. The shape and pattern may be different in individuals, but it is normal. In flaccid stage these veins are not prominent. When one gets erection the blood flow the penile vessels increase. This leads to filling of them with blood, and they become prominently visible. In fact, it is the blood flowing that is responsible for erection and its maintenance. In my opinion what you have is normal and there is no need to worry. However, if you are anxious about it, local examination by your doctor is the only option. You need treatment which will not be possible without your local doctor examining you. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. Hope this answers your query. Available for further clarifications. Good luck. Take care. </s>