I'm 15, not sexually active and have a lump on my penis, it's small and painless, the lump is squishy and can be pushed down, but it wont stay. I've had it since around February and I masturbate at least once a day. I've had no problems with it, it's just there and everything's working as it should. I went to the doctors about it and they told me that I should watch out for growth, and it hasn't done that. It's just stayed the same. I've had no obvious symptoms of anything apart from being tired which I am most days. Any ideas to what this is? because it's starting to worry me as other people are telling me it's certain cancer or a tumour. thanks!