What is the definition or description of: premature ejaculation?

Already?! Relax!: Premature ejaculation occurs when a man has an orgasm sooner during intercourse (may occur before actual penetration) than he or his partner desires. It is often caused by anxiety, too much stimulation, guilt, or other psychological factors.

Prem. Ejaculation: Is when a man has an orgasm sooner during intercourse than he or his partner wishes. Is common & rarely caused by physical problems. Some causes are anxiety, guilt, too much stimulation, or other psychological factors. Treatment, if persists, are stop/start technique, squeeze technique, or antidepressants such as prozac (fluoxetine).