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Penile Dopplers

A Penile Doppler is a diagnostic procedure using ultrasound to look for the causes of Erectile Dysfunction (ED). The ultrasound performed just before and during a medically stimulated erection allows the Skyline Urology specialist to measure blood flow to the penis in its erect state, and to predict the response of your ED to vasodilator medications. It also allows your Skyline Urologist to determine if you have an “inflow” or “outflow” type of ED, which will further inform the treatment plan to treat your case.  


The Penile Doppler Ultrasound takes approximately 30 minutes. The patient is asked to lie on an exam table, and then given a medication which dilates the arteries to the penis, increasing blood flow and causing an erection. A penile Doppler ultrasound is performedto look at the blood vessels and flow in the penis.

Side Effects

The Penile Doppler Ultrasound is performed by placing the probe along the outside of the penis, so no pain is involved in that portion of the procedure.

Side effects after the procedure may include:

  • Minimal discomfort at the site of the injection
  • A prolonged erection (which may require further treatment to resolve)