Font Size
A
A
A

Impotence/Erectile Dysfunction (cont.)

Illustrations: Methods of diagnosing the cause of erectile dysfunction

Media file 1: Anatomy of the penis.

Picture of penis anatomy.
Picture of penis anatomy.

Media file 2: A number of devices have been developed to determine if an erection occurs during sleep. This snap gauge is fastened around the penis but opens when an erection occurs.

Picture of erection-measuring snap gauge.
Picture of erection-measuring snap gauge.

Media file 3: This penile tumescence monitor is placed at the base and near the corona of the penis. It is connected to a monitor that records a continuous graph depicting the force and duration of erections that occur during sleep. The monitor is strapped to the leg. The nocturnal penile tumescence (NPT) test is conducted on several nights to obtain an accurate indication of erections that normally occur during the alpha phase of sleep.

Picture of penile tumescence monitor
Picture of penile tumescence monitor

Media file 4: The presence of normal skin sensation adequate to produce an erection is measured with this device.

Picture of device used to measure penile nerve sensation
Picture of device used to measure penile nerve sensation
Medically Reviewed by a Doctor on 3/6/2014
Medical Author:
Coauthor:
Medical Editor:
Medical Editor:
Medical Editor:

Must Read Articles Related to Impotence/Erectile Dysfunction

Erectile Dysfunction FAQs
Erectile Dysfunction FAQs Erectile dysfunction (or ED), also called male impotence, describes a man's inability to achieve and maintain an erection of his penis sufficient for mutually s...learn more >>

Patient Comments & Reviews

The eMedicineHealth doctors ask about Erectile Dysfunction:

Erectile Dysfunction - Surgery

Did you receive surgical intervention for your erectile dysfunction? Were you satisfied with the results?

Erectile Dysfunction - Medical Treatment

Did you receive medical treatment for your erectile dysfunction? What was the treatment? Were you satisfied with the results?




Read What Your Physician is Reading on Medscape

Erectile Dysfuncton »

Sexual health and function are important determinants of quality of life.

Read More on Medscape Reference »


Medical Dictionary