question: Hi I'm a  17 year old male and I think my scrotum is swelled up, well actually it is in a contracted shape with slight increase in size. Also, my testes, especially the right one, seems to be a little tender. There wasn't and is no pain unless I tough the testes and apply a little pressure to it. I think it is because I slept last night with my underwear on which might have been a little tight. What is wrong with me and what should I do?