Men do not ejaculate refers to men do not ejaculate, may be functional, organic, drug or a variety of factors interact with the cause, should be timely medical treatment, clear cause after treatment. 1. Functional: mostly seen in the sexual function of young adults, may be the lack of sexual knowledge, husband and wife relationship disharmony, excessive masturbation and other factors leading to male non-ejaculation, this kind of people should fully understand the relevant sexual knowledge, eliminate the adverse psychological impact, abstinence from masturbation. 2. Organic: Organic diseases that can cause male ejaculation include prepuce, penile trauma, severe hypospadias, and diabetes mellitus, hypopituitarism and so on. 3. Drugs: If a man has a history of taking anti-hypertensive drugs and sedative drugs before ejaculation, he should change or stop the drugs under the guidance of the doctor. Male ejaculation may also be the result of medical injury, endocrine abnormalities, etc., the patient should be under the guidance of the doctor to choose the appropriate treatment.