<s>[INST] hi there...im kinda freaking out right now because i have a bump on my penis foreskin and its dark, solid, doesn t hurt at all, its not filled up with fluid, it doesn t look anything like a wart , and for the last year and a half i have only been with one person and have never even kissed another girl. Im really confused cause when i got tested and they took blood the last four or five time within the last 2 years i was negative with all std tests....Someone please help cause i have search the entire net it feels like and nothing is similar [/INST] HelloThanks for your query,based on the facts that you have posted it appears that you have dark,solid bump on your foreskin.This could be either a calcified vein ( one of the tributaries of Dorsal vein of penis) or a sebaceous cyst.However final diagnosis can be confirmed only on diesct inspection and palpation of the bump.Please consult qualified General Surgeon or Urologist for clinical assessment and further treatment which will depend upon the final diagnosis.Dr.Patil.. </s>