I have had the same thing for
over 50 years, its ok they never go away, dont worry your just normal, if your still worried then go to pegym and have a look at the p***s photos on there and you can judge for yourself, but for me just dont worry its a small thing in your young life, and I take it atb 15 you not had much of a sex life yet, if so that should cut down any chances of STDs.