Originally Posted by
Nightshade
...That could also explain why I ,at 67, have no problems with my prostate since I ride upright all the time.
The reason I'm pretty sure that bike seats don't cause it is because prostates have been enlarging since before bicycles were invented. I have heard that it's less common in Europe, but again, nobody knows why. I'm pretty sure that if you have no problems at age 67, you're just luckier than me.
Besides, I've got one of those "R" things which don't have saddles.