I am 19 and i have not been sexual active for about half a year, i took a shower this morning but didn't notice anything. Tonight at about 11:30 i went tot he bathroom. After i cleaned myself up i noticed a pimple like thing on my white testicle, as i had cleaned my self i accidentally rubbed it with the paper. Then puss came out, it increased in size a little and has blood coming out but not very much.Its the same color as the rest of my skin, but it is a little shiny, with a hole on the top, the skin on the growth area is very taunt or stretched out. Is it something to be worried about?