Tests For Erection Problems: Why It Is Done

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Why It Is Done

Tests for erection problems are done to help find whether the cause of an erection problem is physical, psychological, or a combination of both.

Physical conditions that may cause erection problems include:

• Problems with the nerves of the penis. Conditions such as multiple sclerosis or diabetes may cause nerve damage that affects a man's ability to have an erection. Also, surgery, injury, or radiation treatment to the pelvic area may cause damage to the nerves of the penis.
• Problems with the blood vessels that supply blood to the penis. Conditions such as hardening of the arteries (atherosclerosis) may make it difficult for a man to have an erection. Activities such as long-distance bicycle riding on a hard, narrow saddle may increase a man's risk for having an erection problem. See a picture of blood supply to the penis .
• Low levels of hormones, such as testosterone or thyroid hormones.
• Side effects of medicines, such as medicines taken for high blood pressure (hypertension) or depression.
• The use of tobacco, alcohol, or illegal drugs.

Psychological tests may be needed if no physical cause is found for an erection problem. Psychological causes of erection problems may include:

• Anxiety about sexual performance.
• Relationship problems.
• Stress.
• Depression or grief.

Last updated:	May 21, 2008
Author:	Monica Rhodes
Reviewed By:	E. Gregory Thompson, MD - Internal Medicine, Christopher G. Wood, MD, FACS - Urology/Oncology
Editors:	Kathleen M. Ariss, MS, Tracy Landauer