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Diagnosis

Understanding Venogram

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A venogram is a type of imaging procedure. It uses X-rays and a special dye to look at veins in your body. The dye is called a contrast material. An X-ray is a picture of the inside of your body. Low levels of radiation create the image.


Why a venogram is done

A venogram is often done to find blood clots in the veins. It can help diagnose deep vein thrombosis. This is a blood clot in a deep vein, often in your legs. It's also done to find other problems related to the veins. These include varicose veins, a vein defect, or the narrowing of a vein.


How a venogram is done

This procedure is often done on an outpatient basis. That means you can go home afterward. During the procedure:

  • You will lie down on an exam table. The table may tilt to help the dye move through your body.
  • You may be given medicine, so you don't feel any pain.
  • A health care provider will put a catheter, or needle, into one of your veins. The location depends on which body part is being X-rayed.
  • They will inject the dye into your vein.
  • X-rays are taken as the dye moves through your body.
  • You may be asked to hold your breath during the procedure.


Risks of a venogram

  • Pain
  • Blood clots
  • Allergy to the dye
  • Kidney problems

Author: Semko, Laura

© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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Venogram

A venogram is a test that lets your healthcare provider see the veins in your body, especially in your legs. A special dye is injected that can been seen on an X-ray. The dye lets your healthcare provider see your veins and how healthy they are.