Erectile Dysfunction

Diagnosis

Mayo Clinic offers a full range of tools for evaluating erectile dysfunction. Doctors will likely perform a physical exam and blood and urine tests. They may also use a sexual health questionnaire to help understand your problem.

Some men may require specialized tests. Mayo Clinic provides both noninvasive and invasive testing, which can include:

• Color duplex Doppler ultrasonography
• Testing vascular pressure in the penis (cavernosography)
• Injecting dye to search for blood flow problems in the penis (cavernosometry)
• Injecting dye to see blood flow in arteries carrying blood to the penis (penile arteriography)
• Magnetic resonance imaging (MRI)
• 3-D computerized tomography (CT) scan
• Nocturnal penile erection monitoring
• Nerve conduction testing

Read more about erectile dysfunction diagnosis.