I am teenager and Never had sex but and from last 1 year I am masturbating and frequently u can say minimum 2 times a day and through that time I didn't see any lums,pimple on my penis dick but today just after bath I was earg for masturbation but when I pull down my pants I saw one small black pimple and when I popup very little black thing comes out and suddenly after it bleed I immediately wash and clean it with cotton then after some 1 2 min it stop so is it small command lump or pimple or genital wart