d.gray-man1757764 over a year ago I am 14 and i have a big pimple like bump oon the top area of my pubic hair. I am a virgin so i doubt it is a STD but what is it? and is it an STD? Loading... lty_patt28104 over a year ago it sounds like an infected hair Reply Loading... Guest over a year ago Its in ingrown hair most likely got it if you dont scrub your hairs. Reply Loading...