I have not been hit in them and can see no known reason for them to be sore but for the past couple weeks they have been very tender. It feel like I have been punched in them but haven't. THe other day I stood up and had to immediately double over because it felt like something yanked my left testicle HARD! I had to wait crouched over for a few seconds for the agony to pass but then it was fine. I wear loose pants and shorts so they have plenty of room. I checked them for lumps and they feel normal but very tender. I am 50 so not puberty.