"delayed ejaculation" instead of older terms such as "inhibited ejaculation", "impotent ejaculation" or "retarded ejaculation". To determine what amount of time counts as delayed, one source uses a measurement of the mean time for a man to achieve ejaculation in a study of 500 couples having heterosexual vaginal intercourse, which was 8 minutes (with a standard deviation of 7.1 minutes).Due to men's reputation for being reliably able to ejaculate during sex, in cases where a man faces delayed ejaculation, the woman may perceive that it is due to her not being attractive or due to a fault in her sexual techniques. Causes The etiologies of delayed ejaculation can be age-related, organic, psychological, or pharmacological. Primary lifelong DEs are poorly understood and rarely explained by few congenital anatomic causes (viz., Müllerian duct cyst, Wolfian duct abnormalities, prune belly syndrome, imperforate anus, congenital ejaculatory duct obstruction, genetic abnormalities including cystic fibrosis, etc.) Anatomic causes (acquired ejaculatory duct obstruction) Infective/Inflammation (residual damage from acute infections, chronic infections, urethritis, prostatitis, orchitis, genitourinary tuberculosis, schistosomiasis, lichen sclerosis, etc.) Neurogenic causes (diabetic autonomic neuropathy, spinal cord or nerve root injury from trauma or disc prolapse, multiple sclerosis, etc.). DE can be due to the injury to pelvic nerves responsible for orgasm from trauma as a result of pelvic surgery (viz., prostate surgery including transurethral resection of prostate and bladder neck incision, proctocolectomy, bilateral sympathectomy, abdominal aortic aneurysmectomy, para-aortic lymphadenectomy etc.). Some men report a lack of sensation in the nerves of the glans penis, which may or may not be related to external factors, including a history of circumcision. Endocrine (hypogonadism, pituitary disorders such as hyperprolactinaemia and Cushing's disease, thyroid disorders, etc.). Although low testosterone level had been considered a risk factor in the past, more recent studies have not confirmed any association between ejaculation times and serum testosterone levels. Delayed ejaculation is a possible side effect of alcohol and certain medications, including antipsychotics, antidepressants including selective serotonin reuptake inhibitors (SSRIs), opiates such as morphine or oxycodone, many benzodiazepines such as Valium or Xanax, and certain antihypertensives including thiazide diuretics, alpha-adrenergic blockers and ganglion blockers. Although they may increase sexual desire, stimulants such as amphetamines and cocaine have an inhibitory effect on ejaculation, and can cause erectile dysfunction and reduced penile sensitivity via their vasoconstrictive effects. Psychological (acute psychological distress, relationship distress, psychosexual skill deficit, disconnect between arousal and sexual situations, masturbation style and frequency, etc.)