premature-ejaculation-causes

PREMATURE EJACULATION
EARLY ORGASMIC RESPONSE
Definition

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

CAUSES OF PREMATURE EJACULATION

Premature ejaculation is a common complaint. It is only rarely caused by a physical problem.

Premature ejaculation early in a relationship is most often caused by anxiety and too much stimulation. Guilt and other psychological factors may also be involved. The condition usually improves without treatment.

Medline Plus
http://www.nlm.nih.gov/medlineplus/ency/article/001524.htm