There are many reasons why men do not ejaculate, and the details are as follows: 1. It may be because the brain has problems in control and regulation. Inability to ejaculate may occur because the brain's receptors and instructions are sent out in the wrong way, or the sensory output is inhibited. 2. Psychological reasons of the patient. In adolescence, due to some reasons, psychological misconceptions have been caused. For a long time, psychological barriers will lead to difficulty in ejaculation for male patients. In this case, the symptoms of non ejaculation will be improved by actively accepting psychotherapy and changing wrong cognition. 3. In addition to the above two reasons, it may also be caused by retrograde ejaculation. The patient is not without ejaculation behavior at the time of onset, but without ejaculation behavior outside the body due to congenital dysplasia and other reasons, and needs to go to the regular hospital for treatment in time. In daily life, quitting smoking and drinking, strengthening exercise, and developing correct living habits are conducive to the recovery of the disease.