Small note about torsions: The example you showed implied a twisting of the entire scrotum, and I believe this is not the case. A torsion is when one testicle twists *inside the scrotum, and is usually not visible until it starts to swell. It will probably hurt like hell though. My friend got one while I was sleeping at his house (a coincidence, I swear), and woke up with a scrotum the size of a small grapefruit. He needed surgery, but still has both his testicles, so yay!