One of the 'causes' that SigEp has taken up in the last several years is awareness, early detection, and treatment of testicular cancer. According to this article one method that can provide an early indicator is a pregnancy test. Strange, but apparently true...Man Gets Treatment for Cancer Thanks to a Home Pregnancy Test and Reddit | TIME.com:

User goxilo was no troll. Pregnancy tests produce a positive result upon the detection of the hormone human chorionic gonadotropin, which is produced not only by pregnancy in women but also by testicular tumors in men. CappnPoopdeck’s friend visited the doctor and found a small tumor in his right testicle, according to a follow-up comic.
CappnPoopdeck expressed a number of conflicting feelings in his update, he wrote that early detection enabled the tumor to be treated immediately and thanked Redditors for their advice.
“I’m sad he might lose a nut, while I’m also amazed a preg test picked up a f—ing tumor and happy it was caught early, all at the same time,” CappnPoopdeck wrote in his second comic. “So both of us want to say thank you, and in all seriousness, if you are male check yourself for testicular cancer regularly. If you’re a girl, test yourself for breast cancer regularly.”
Read more: http://newsfeed.time.com/2012/11/08/mans-positive-pregnancy-test-leads-to-cancer-diagnosis/#ixzz2BmZvDmYM