So by ‘going out,’ the scrotum maintains sperm a few degrees cooler. Too much heat can smaller sperm count . So tight clothes and underwear that maintain testicles nearer to body heat might, in theory, impact sperm count. But many professionals think there isn’t enough of a temp change to create any significant difference.. Can Wearing Tight Clothing Affect a Guy’s Sperm Count? Does putting on tight underwear or slacks like tighty-whities affect sperm fertility? – Carson* Although some studies have shown a decrease in sperm fertility from wearing tight-fitting underwear, others have not.In case you have any symptoms, you should check with your doctor for effective remedies to make sure that the machine is working perfectly for you. Once you take all these into consideration, you will be sure to use it for a long time. You will experience a better standard of living also. When you start using it, you need to visit the doctor regularly. It’s also advisable to clean the machine frequently to obtain better results. However, if you realize that your machine can be causing too much discomfort, you can speak to your doctor and have them adjust it to minimize the relative side effects.