The causes of coital ejaculation are congenital, acquired, psychological, idiopathic factors, etc. Its treatment includes surgery, auxiliary treatment, psychological treatment, artificial insemination and so on. 1.Causes of non-ejaculation: (1) Congenital factors: such as urethral hypospadias, bladder exstrophy, vasectomy and so on. (2) Acquired factors: such as diabetic neuropathy, surgery to the lower abdominal nerve injury, spinal cord injury, etc.. (3) Psychological factors: lack of confidence in sexual life due to various psychological reasons. (4) idiopathic factors: the cause is unknown, relatively rare, and the effect of conventional treatment is not good. 2. Treatment of non-ejaculation: (1) Surgery: Inejaculation caused by congenital factors can be treated by means of surgical orthopedics and repair. (2) Auxiliary treatment: Ejaculation can be induced by vibration stimulation of penis vibrator or sex concentration training method. (3) Psychotherapy: Psychological patients can be treated through psychological counseling. (4) Artificial insemination: Infertile patients due to non-ejaculation can be induced to ejaculate through electrical stimulation to obtain semen for artificial insemination. Patients who do not ejaculate at the same time should go to the hospital in time, under the guidance of the doctor standardized treatment.