The method of applying toothpaste on top of the glans is not recommended and is unscientific. Many men believe that applying toothpaste on the glans can reduce the sensitivity of the glans and thus prolong ejaculation, but this practice can lead to damage to the glans. Because toothpaste is very strongly irritating, the glans is locally very sensitive and after applying toothpaste it can lead to significant redness, pain and even severe swelling and does not have the stated effect of reducing glans sensitivity. If a man’s glans is too sensitive, he can usually turn his foreskin over and put his glans in more contact with the outside world, so that the sensitivity will slowly and gradually decrease, thus prolonging the ejaculation time. If there is a long foreskin, circumcision to consider through surgery, can reduce the glans sensitivity, if necessary, also need to consider through drug treatment to improve sensitivity.