Epidural Blood Patch
by Deanna M. Neff, MPH
An epidural blood patch is when a small amount of blood is used to seal a puncture site in the spine as a result of a spinal tap procedure. The patch helps restore normal pressure in the spinal fluid.
Reasons for Procedure TOP
This procedure is done to relieve a spinal headache that does not go away on its own. A spinal headache can develop after a spinal tap procedure when too much spinal fluid leaks internally and reduces pressure in the spine.
This procedure is quite common and relief is often immediate.
Possible Complications TOP
Complications are rare, but no procedure is completely free of risk. If you are planning to have an epidural blood patch, your doctor will review a list of possible complications, which may include:
Factors that may increase the risk of complications include:
Be sure to discuss these risks with your doctor before the epidural blood patch.
What to Expect TOP
Prior to Procedure
Local anesthesia will be used at the puncture site, so you should not feel any pain during the procedure.
Description of the Procedure TOP
In the operating room, 2 IVs will be inserted in your arms to delivery medications and fluids and to draw blood. You may be given a sedative to ease anxiety.
You will lie face down on the table. Your back will be washed and sanitized. An x-ray may be used to help guide a small needle to the area where spinal fluid is leaking. Contrast dye solution will be injected and more x-rays will be taken. A small amount of blood will be drawn and injected into the correct area of the spine. This should clot, or seal, the leakage.
How Long Will It Take? TOP
About 30 minutes
How Much Will It Hurt? TOP
You will remain awake and be asked to lie still during the procedure. Local anesthesia injected should block any pain. You may feel a slight pressure during the procedure.
Average Hospital Stay TOP
After resting, you may be able to go home the same day.
Post-procedure Care TOP
At the Hospital
When you return home, follow your doctor's instructions.
Call Your Doctor TOP
After you leave the hospital, contact your doctor if any of the following occurs:
In case of an emergency, call for emergency medical services right away.
The American Congress of Obstetricians and Gynecologists
Family Doctor—American Family Physician
Canadian Anesthesiologists’ Society
The Society of Obstetricians and Gynecologists of Canada
Epidural blood patch. Newton Wellesley Hospital website. Available at:
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Accessed June 20, 2016.
Krovvidi H, Hasan M. Epidural blood patch. CPD Anaesthesia. 2003;5(2):94-97.
University of Wisconsin School of Medicine and Public Health. Epidural blood patch. University of Wisconsin School of Medicine and Public Health website. Available at:
...(Click grey area to select URL)
Updated October 2014. Accessed June 20, 2016.
Last reviewed June 2016 by Marcin Chwistek, MD
Last Updated: 6/19/2014
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