HealthWise KnowledgeBase
Tests for Erection Problems
How It Feels
Nocturnal penile tumescence (NPT) test
A nocturnal penile tumescence (NPT) test does not cause any discomfort, but you may feel embarrassed about doing the test. Remember that it's important to find the cause of your inability to have an erection and you don't need to feel embarrassed about the test.
Intracavernosal injection test
During the intracavernosal injection test, you will feel a sharp, stinging pain in your penis from the needle. If you feel a burning or aching pain during the erection, tell your doctor immediately.
Doppler ultrasound
The ultrasound does not cause any pain. If you get a medicine or device during the test to cause an erection, you may feel embarrassed and the shot may hurt.
| By: | Reference Healthwise Staff | Last Revised: Reference May 14, 2012 |
| Medical Review: | Reference E. Gregory Thompson, MD - Internal Medicine
Reference Christopher G. Wood, MD, FACS - Urology, Oncology |
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