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Tests and diagnosis
By Mayo Clinic staffFor many men, a physical exam and answering questions (medical history) are all that's needed before a doctor is ready to recommend a treatment. If your doctor suspects that underlying problems may be involved, or you have chronic health problems, you may need further tests or you may need to see a specialist.
Tests for underlying problems may include:
- Physical exam. This may include careful examination of your penis and testicles and checking your nerves for feeling.
- Blood tests. A sample of your blood may be sent to a lab to check for signs of heart disease, diabetes, low testosterone levels and other health problems.
- Urine tests (urinalysis). Like blood tests, urine tests are used to look for signs of diabetes and other underlying health conditions.
- Ultrasound. This test can check blood flow to your penis. It involves using a wand-like device (transducer) held over the blood vessels that supply the penis. It creates a video image to let your doctor see if you have blood flow problems. This test is sometimes done in combination with an injection of medications into the penis to determine if blood flow increases normally.
- Overnight erection test. Most men have erections during sleep without remembering them. This simple test involves wrapping special tape around your penis before you go to bed. If the tape is separated in the morning, your penis was erect at some time during the night. This indicates the cause is of your erectile dysfunction is most likely psychological and not physical.
- AUA guideline on the management of erectile dysfunction: Diagnosis and treatment recommendations. Linthicum, Md.: American Urological Association. http://www.auanet.org/content/guidelines-and-quality-care/clinical-guidelines.cfm?sub=ed. Accessed Nov. 21, 2009.
- Kolodny L. Erectile dysfunction. In: Rakel RE, et al. Conn's Current Therapy. 1st ed. Philadelphia, Pa.: Saunders; 2009. hhttp://www.mdconsult.com/book/player/book.do?method=display&type=bookPage&decorator=header&eid=4-u1.0-B978-1-4160-5974-5..00177-5--s0090&uniq=172836296&isbn=978-1-4160-5974-5#lpState=open&lpTab=contentsTab&content=4-u1.0-B978-1-4160-5974-5..00177-5%3Bfrom%3Dtoc%3Btype%3DbookPage%3Bisbn%3D978-1-4160-5974-5. Accessed Nov. 21, 2009.
- Ghanem G, et al. An evidence-based perspective to commonly performed erectile dysfunction investigations. Journal of Sexual Medicine. 2008;5:1582.
- Selvin E, et al. Prevalence and risk factors for erectile dysfunction in the U.S. The American Journal of Medicine. 2007;120:151.
- Spark RF. Treatment of male sexual dysfunction. http://www.uptodate.com/home/index.html. Accessed Nov. 21, 2009.
- Rohren CH (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 17, 2009.
- Park J, et al. Complementary and alternative medicine in men's health. Journal of Men's Health. 2008;5:305.
- Bauer B. Mayo Clinic Book of Alternative Medicine. New York, N.Y.: Time Inc. Home Entertainment; 2007:174.
- Bauer B. Mayo Clinic Book of Alternative Medicine. New York, N.Y.: Time Inc. Home Entertainment; 2007:63.
