Since I was 10, I remember having canker sores, I only get them inside my mouth. I also remember having same thing on my testicles. The ones in my mouth look identical to the ones I get on my testicles. I am 27 now. I have been getting them off and on for 17 years. They are always open sores and very difficult to deal with. I joined the armed forces to try and get answers but I was to embarrass. I have looked online all over for answers and turned up empty. I am almost at the end of my rope on this. I need answers.