Men with a short sex life, then the possible causes: First, patients who have not had sex for a long time, or patients who have sex for the first time, can cause a short time. With the increase in the frequency of sex time, the symptoms can gradually improve. Second, for patients suffering from prepuce or circumcision, the glans is wrapped by the foreskin for a long time, so it is difficult to accept external stimulation, the local sensitivity is relatively high, there can be a short time. It is recommended that circumcision be performed for patients with long foreskin or circumcision to observe whether sex time can be extended. Third, if there are patients with elevated nerve threshold sensitivity, there can be a shorter sex time. This situation is usually within 1 minute, called primary premature ejaculation, and requires drug treatment. Fourth, if there is a local infection or ulcer, or chronic inflammation, it can lead to increased local sensitivity. This can occur when the time is short, and at the same time can appear pain during sexual intercourse, or pain during urination.