I've had this bump in my upper thigh for about two months now. It is about half a centimeter to one centimeter. When I just got it I thought it was a pimple and then when I tried to get rid of it a fluid came out. Then I realized it wasn't gone...I still have the bump and it's been a while... I have no idea what it is...I wonder if it could be an std. Yesterday a fluid and some blood came out but the bump is still there. The bump has a darkish color on the tip. Before I got the bump I didn't have sex or had any contact with any other girl except my girlfriend which I am 100 % sure is free of stds. Thanks for your help!