Testicle ultrasound

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Male reproductive anatomy

Testicular ultrasound

Testicle ultrasound is an imaging test that examines the testicles and other parts inside the scrotum. The testicles are the male reproductive organs that produce sperm and the hormone testosterone. They are located in the scrotum, the flesh-covered sac that hangs between the legs at the base of the penis.

Scrotal ultrasound; Testicular sonogram

You lie on your back with your legs spread. The health care provider drapes a cloth or applies wide strips of adhesive tape across your thighs under the scrotum. The scrotal sac will be slightly raised, with the testicles lying side by side.

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A clear gel is applied to the scrotal sac to help transmit the sound waves. A handheld probe (the ultrasound transducer) is then moved over the scrotum. The ultrasound machine sends out high-frequency sound waves, which reflect off areas in the scrotum to create a picture.

No special preparation is needed for this test.

For children, the preparation you can provide for this test depends on your child's age, past experiences, and level of trust. For specific information on how to prepare your teen, see adolescent test or procedure preparation (12 - 18 years). This test is rarely done on children younger than age 12.

There is little discomfort. The conducting gel may feel slightly cold and wet.

A testicle ultrasound is done to help determine why one or both testicles have become larger, or to find the reason for pain in the testicles. It can also show how blood flows through the testicles.

Review Date: 09/03/2010
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; Scott Miller, MD, Urologist in private practice in Atlanta, Georgia. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).