FD - very thorough response, but there is one more type of hernia (and I know 'coz I had one!) and that is an epigastric hernia. I'd assumed it was an umbilical hernia because it was a golf-ball like swelling over my umbilicus. The surgeon said it was actually an epigastric one.
You get these from lifting 38 kg of wriggling, aging German Shepherd Dog into the back of a car!!
Anyway, back to the original sport of testicle grabbing....
