Premature ejaculation occurs when a man orgasms during intercourse sooner than he or his partner wishes.

  1. There's no medical standard for how long it should take a man to ejaculate. The primary sign of premature ejaculation is ejaculation that occurs before both partners wish in the majority of sexual encounters, causing distress for one or both partners. The problem can occur in all sexual situations, including masturbation, or may only occur during sexual encounters with another person.