I had one when I was 18, it was likely caused by getting kicked in the balls, and it my left nut swelled to twice it's size. I really thought I was a freak of nature, I'd never heard of such a thing. Going to see a doctor for it was horrifying, but he sent me to a urologist who told me it's not uncommon. What freaked me out was I started pissing blood, not a lot, but enough that it was visible. At first I thought it was cancer, and the thought of cancer destroying my best friend was devastating. First the urologist decided to drain it to see if that would fix it. Do you think I got any sleep the night before? He numbed it first with an injection, and I passed out from the pain and shock of an ice cold needle stabbing my already swollen sack. When I came to he was in the process of draining it, and although I couldn't feel any pain, I could feel the big needle in my sack moving around. How I managed to stay awake is beyond me, but it did make me sick to my stomach. The nurse managed to grab a pan just in time to catch my puke. It was all for nothing, the hydrocele was back the next day. Now I needed surgery, and I refused, but also knew it had to be done. This was in the summer too, so I hadn't gone swimming at all because I didn't want to be seen in swim trunks, forget about the speedo I often wore! I have never been so scared as when I checked into the hospital. I was so distraught that I was given a sedative, it was GREAT! I was happy and calm, watching tv and vegging out. A male nurse came in the room to shave me, and I was so out of it I thought he wanted to shave my face, which I had already done. When he told me where he wanted to shave me, I was horrified. He was 25 and really handsome, and the last thing I wanted was for a hot guy to see my swollen sack show! And how would I keep from getting hard? A guy touching me there was guaranteed to give me a boner! I held the blanket up to my chin and he started pulling on it. He told me not to worry, he sees men all day. I relented and he pulled the blanket down, pushed aside my gown, and applied shaving cream. He told me my hydrocele was nothing, he has seen far worse (you don't want to know what happens in some motorcycle accidents). The sensation of him rubbing the shaving cream all over was too much, and combined with the pleasure of the sedative, I got HARD. I was beyond embarrassed, I could feel my face getting red and I couldn't speak. He just smiled and kept telling me to relax, nothing to worry about, you're doing fine. He kept having to hold my dick to one side, which was torture. To shave the underside of my dick and the top of my balls, he pointed my dick up towards my belly button (it goes past it) and held it down. That pretty much did it, and I started leaking precum like mad. He just kept shaving, he was great at it, I barely felt the blade and I was smooth as silk when he cleaned me off. The fact that he was unfazed by my deformity had me swooning. He was totally professional, but he smiled the whole time and was so nice. Had I been braver, I would asked him to jerk me off or blow me. Had he made a move, I wouldn't have stopped him. As luck would have it, the other bed in my room was empty, so I had privacy. When he was done cleaning me, he told me he would close my door so I could "get some rest". He said it with a wink, and considering my throbbing boner, he knew what I was going to do. I took some lotion and beat off like mad, the orgasm was a mind fuck. Good thing I emptied my balls that night, because the healing after the surgery was too gross to talk about. The hydrocele never came back, although I was tempted to injure my body somehow so I could have that nurse again. One good thing about the ball sack: because the skin is so loose and wrinkly there, the scar is invisible and there is no detectable scar tissue. You can imagine my relief when I was able to get hard and cum after the surgery, I was worried that I would never function normally again.