The failure to ejaculate is often considered to be ejaculatory dysfunction, which may be caused by retrograde ejaculation, ejaculatory disorders and other diseases. 1. Retrograde ejaculation: the etiology of this disease is more complex, may be congenital anatomical abnormalities, such as urethral valve disease, congenital spina bifida, etc., or prostate electrocision, sympathectomy and other surgical procedures leading to nerve dysfunction caused. In addition to this, it may also be related to antipsychotic drugs, trauma, inflammatory urethral stricture and other causes. The symptoms of retrograde ejaculation are relatively single and clear, mainly manifested as the patient has ejaculatory action, but no semen flows out of the urethra. 2. Inejaculation: the possibility of this disease is related to sexual fatigue, sexual ignorance, long-term masturbation, mental trauma and other physiological factors. Secondly, it also needs to be considered as a result of organic causes such as hypopituitarism, encopresis, prostatitis, and peripheral neuropathy. Its typical symptom is that the patient is unable to complete the action of sexual intercourse and cannot ejaculate in the vagina after reaching orgasm. There are many reasons why patients cannot ejaculate semen, and they should go to the hospital for consultation to clarify the specific cause of the disease.