i am going to make an appointment soon with my urologist but while waiting i'm trying to get some answers i could see this dark circle only in mirror
you have multiple questions in multiple forums now. Honestly you should be following up on all of this with a medical provider at this point.
grace
Has this dark circle changed steadily over several hours or a day?
Is it still a dark circle after a warm shower?
You might be just looking at skin variation...
If this dark circle change color after a day, its not a STD.