Get a PSA blood-test performed, periodically, to see if your Prostate is cancerous. This is a deadly disease that can be prevented, if caught early on. Men over 50 are at an increased risk of being diagnosed with this condition, and if live long enough-- will develop some kind of complications with the testicles. Just like any other cancer, if left untreated-- it can spread to other areas of the body. So, if something doesn't feel right, or are showing symptoms-- visit your local doctor, it just might save your life.