One testicle usually hangs lower than the other. This is to prevent them from colliding into each other during physical activities. It also helps regulate temperature since sperm needs to be kept cooler than the body. Typically the left testicle hangs lower than the right and this applies to me as well. My left testicle hangs lower than my right one. So my question to you is which testicle of yours hangs lower? Let’s put science to the test and let me know! Lol