Men who experience delayed ejaculation, also called anejaculation, typically take an abnormally long time to ejaculate (such as 30 to 45 minutes) or never ejaculate at all. There are many variations of this condition which include men who:
neither have an orgasm or ejaculation,
have an orgasm without ejaculation, or
ejaculate without orgasm.
What Causes Delayed Ejaculation?
This may occur because of:
Aging
Hormonal abnormalities
Psychological issues
Blocked ducts that semen passes through
Medications (especially SSRIs, which are often used for depression and other conditions)
Diabetes
Neurologic diseases
Multiple sclerosis, and
Spinal cord injury
Surgery
Radical prostatectomy — prostate cancer surgery
Retroperitoneal lymph node dissection — testicle cancer surgery