The physical process of ejaculation requires two actions: emission and expulsion. The emission is the first phase. It involves deposition of fluid from the ampullary vas deferens, seminal vesicles and prostate gland into the posterior urethra. The second phase is the expulsion phase. It involves closure of bladder neck, followed by the rhythmic contractions of the urethra by pelvic-perineal and bulbospongiosus muscle and intermittent relaxation of external urethral sphincters. Sympathetic motor neurons control the emission phase of ejaculation reflex, and expulsion phase is executed by somatic and autonomic motor neurons. These motor neurons are located in the thoracolumbar and lumbosacral spinal cord and are activated in a coordinated manner when sufficient sensory input to reach the ejaculatory threshold has entered the central nervous system. Intromission time The 1948 Kinsey Report suggested that three-quarters of men ejaculate within two minutes of penetration in over half of their sexual encounters. Current evidence supports an average intravaginal ejaculation latency time (IELT) of six and a half minutes in 18- to 30-year-olds. If the disorder is defined as an IELT percentile below 2.5, then<unk>  could be suggested by an IELT of less than about two minutes. Nevertheless, it is possible that men with abnormally low IELTs could be satisfied with their performance and do not report a lack of control. Likewise, those with higher IELTs may consider themselves<unk>  ejaculators, suffer from detrimental side effects normally associated with<unk> , and even benefit from treatment.
Premature ejaculation
Delayed ejaculation
Dyschronometria
Retrograde ejaculation
Dyspareunia
Pelvic floor dysfunction
Persistent genital arousal disorder
Coital incontinence