it could be a genital wart or it could be razor bump or a rash but you can't know unless you go see a doctor and if you don't have health insurance or if you do have it and you want to know what it is go see a doctor or go to your local health department they take people that have health insurance and those that don't and you can get checked there and they give out free condoms to in a bag if you need them and i hope this helps you