ultrasound (sonogram) is a test that uses reflected
sound waves to show a picture of the
scrotum . The test can show the long, tightly
coiled tube that lies behind each testicle and collects sperm (epididymis). And it can show
the tube (vas deferens) that connects the testicles to the
prostate gland. The ultrasound does not use
X-rays or other types of radiation.
A small handheld device called a
transducer is passed back and forth over the scrotum. The device sends the
sound waves to the computer, which turns them into a picture. This picture is shown on a video screen. The picture produced by ultrasound is called a
sonogram, echogram, or scan. Pictures or videos of the ultrasound images may be
Why It Is Done
Testicular ultrasound is done to:
- Check a mass or pain in the testicles.
- Find or check on an infection or swelling of the testicles or
- Check for twisting of the
spermatic cord. This problem cuts off blood supply to the
testicles (testicular torsion).
- Check to see if testicular cancer has come back.
- Find an
undescended testicle .
- Check for fluid in
the scrotum (hydrocele), fluid in the epididymis (spermatocele),
blood in the scrotum (hematocele), or pus in the scrotum
- Guide a
biopsy needle for a testicular biopsy. This may be done when testing for
- Check an injury to the
How To Prepare
You don't need to do anything to prepare for a
If you are having a biopsy or another test
during the ultrasound, you may need to sign a consent form.
to your doctor about any concerns you have regarding the need for the test, its
risks, how it will be done, or what the results will mean. To help you
understand the importance of this test, fill out the
medical test information form(What is a PDF document?).
How It Is Done
A testicular ultrasound is usually done
by an ultrasound technologist. It is done at a doctor's
office or hospital.