I never had this before until recently I had unprotected sex with a girl& A Little black thing appeared I have no pain itching or symptoms &i scrapped it off & it never came back now it s in a different location after I had sex with someone else & it has a hair coming out of it now it look like its spreading going up my penis but once again I have no pain symptoms itching or burning now it s been about 2 going on 3 weeks since I had sex with the first girl &i have no symptoms could this still be a Std? Or could it be because the first girl was dirty HELP Please!!!
Thanks for asking in Chat Doctor forum A lesion/swelling with black dot is usually suggestive of sebaceous cyst. Sebaceous cyst will not have any symptoms except swelling.  A visit to surgeon/dermatologist will help you in relief.  So, it would have been easy for us, if you could send a pic of it for diagnosis.  Will be waiting for your pic.  All the best.