Now I'm on active surveillance I am obviously anxious to keep my PSA level down and my risk factors as low as possible. I am doing all the things I was advised to do but recently had a shunt on a motorcycle and took a whack in the balls. Only slight bruising resulted and I didn't require treatment. However, I got a bit worried later that this type of injury could aggravate the cancer. Does anyone know if there is a danger of this or am I just being a bit paranoid?