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Testicular Scan

How It Is Done continued...

You will lie on your back on a table. Your penis will be taped to your belly to keep it out of the way of the scan. A sling or towel may be used to support the testicles under the scanner. After the tracer is injected, the camera will scan for radiation released by the tracer. The camera produces pictures of the tracer in your testicles. Two scans are done about 15 minutes apart. You need to lie very still during each scan to avoid blurring the pictures. The camera does not produce any radiation. You are not exposed to any more radiation while the scan is being done.

The scan takes about 45 minutes.

How It Feels

You may feel nothing at all from the needle puncture when the tracer is injected. Or you may feel a brief sting or pinch as the needle goes through the skin. Otherwise, a testicular scan is usually painless. You may find it hard to stay still during the scan, especially if your testicles are sore. Before the scan, ask for a pillow or blanket to make yourself as comfortable as possible.


Allergic reactions to the radioactive tracer are rare. Most of the tracer will leave your body (through your urine or stool) within a day. So be sure to flush the toilet right after you use it. And wash your hands well with soap and water. The amount of radiation is small. This means it isn't a risk for people to come in contact with you after the test.

You may get some soreness or swelling at the injection site. This can usually be relieved by putting a warm, moist cloth on your arm.

There is always a very slight risk of damage to cells or tissue from being exposed to any radiation. This includes the low level of radiation released by the tracer used for this test.

WebMD Medical Reference from Healthwise

Last Updated: September 09, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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