TesticleEnlarged Did you know that bigger testicles actually make more sperm? National Geographic has a good article about it here. Beware of enlarged organs, though, because they are not competitive! They're actually unhealthy, like in the case of the man who developed 132 lb testicles by mistake. When in doubt, consult your doctor. And feel free to read our Grab Your Gonads self exam card while you're in the waiting room.