Male Sexual Dysfunction Definitions


Staff member
Jun 3, 2003
Male Sexual Dysfunction (MSD)
from the World Health Organization (WHO) 1st International Consultation on ED, Paris, France 1999

Erectile Dysfunction (ED) or Impotence
Consistent or recurrent inability to attain and/or maintain a penile erection sufficient for sexual performance.

Ejaculation and Orgasm
A pleasurable feeling (a cerebral event) usually associated with emission and/or ejaculation.

Deposition of seminal fluid components from the ampullary parts of the vasa deferentia, seminal vessicles and prostate gland into the posterior urethra.

Passage of seminal fluid through the urethra and its expulsion from the urethral meatus.

•Early Ejaculation (formerly called premature ejaculation or rapid ejaculation)
Persistent or recurrent occurrance of ejaculation with minimal sexual stimulation before, on or shortly after penetration and before the person wishes it.

•Delayed Ejaculation
Undue delay in reaching ejaculation during sexual activity.

Inability to achieve an orgasm during conscious sexual activity although nocturrnal emission may occur.

Absence of ejaculation during orgasm.

•Retrograde ejaculation
Backward passage of semen into the bladder after emission, usually due to failure of closure of the bladder neck mechanism, demonstrated by presence of spematozoa in the urine.

Peyronie's Disease
Involves the scarring of a region of the tunica of the erection chambers and the formation of a hard, nodular plaque which is most commonly on the top part of the penis just under the skin. Peyronie's Disease may result in a bending of the erection toward the scarred, fibrous plaque. It may also result in painful intercourse (either from the erection itself or the pain felt by the partner), and erectile dysfunction.

An involuntary, non-physiologic, usually painful prolonged erection that does not result from sexual desire. The corpus spongiosum and glands are not effected, it is not relieve by ejaculation, and my ironically result in permanent erectile dysfunction.

Having a biovailable testosterone concentration below the normal range of bioavailable testosterone concentration for that of healthy, young adult men.