am 19, when i was 15 i found a cyst the doctor said it was a nothing thing to just ignore it.. so i did for a few years, then the pain started up again when i was 17, so i went to the doc and they told me to go see a urologist, and i did. and it was a cyst.. but when i went to get an ultrasound they focused on the OTHER testie... i didn't know why till they said i had a tumor in the other one, ...a tumor that i couldn't see, feel, or touch, it was inside.. plus the cyst on the other one, so they rushed a surgury on me and they had to takle out the whole ball, now i still have the cyst.. and it still hurts sometimes and i still only have that one ball so i dont want to have to get rid of that too..