This procedure is done to ease a spinal headache that does not go away on its own. A spinal headache can happen after an LP. Too much spinal fluid leaks and lowers pressure in the skull.
Problems are rare, but all procedures have some risk. The doctor will go over problems that could happen, such as:
Problems from the anesthesia, sedative, or contrast material
Things that may raise the risk of problems are:
Long term health problems such as diabetes or obesity
Having an infection
What to Expect
Prior to Procedure
The doctor may meet with you to talk about:
Any allergies you may have
Current medicines, herbs, and supplements that you take and whether you need to stop taking them before the procedure
Fasting before the procedure, such as avoiding food or drink after midnight the night before
Whether you need a ride to and from the procedure
The doctor will give local anesthesia—the area will be numbed. Medicine may help you relax.
Description of the Procedure
An x-ray may help guide a small needle to the area where spinal fluid is leaking. Contrast material will be injected. It will help the doctor see the area better. More x-rays will be taken. A small amount of blood will be drawn. The blood will then be injected into the correct area of the spine. This should clot, or seal, the leakage.
How Long Will It Take?
About 30 minutes
Will It Hurt?
There may be slight pressure during the procedure.
Average Hospital Stay
You may be able to go home the same day. If you have any problems, you may need to stay longer.
At the Hospital
Once the LP is done, you will be asked to lie flat and still. After a short time, you will be asked to get up and move around.
Some activities may be limited for a few days. You will need to delay your return to work during this time.
Call Your Doctor
Call your doctor if you are not getting better or you have:
Pain that lasts longer than 24 hours
Fever or chills
Weakness, numbness, or an unusual feeling in your legs or arms
Problems passing urine (pee) or stool (poop)
If you think you have an emergency, call for medical help right away.
Anesthesia epidural blood patch. UW Health website. Available at: https://patient.uwhealth.org/healthfacts/6098. Accessed September 28, 2021.
Cerebrospinal fluid (CSF) leak. Cleveland Clinic website. Available at: https://my.clevelandclinic.org/health/diseases/16854-cerebrospinal-fluid-csf-leak. Accessed September 28, 2021.
Epidural blood patch. University of Rochester Medical Center website. Available at: https://www.urmc.rochester.edu/imaging/specialties/procedures/epidural-patch.aspx. Accessed September 28, 2021.
Postdural puncture headache. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/postdural-puncture-headache. Accessed September 28, 2021.
So Y, Park JM, et al. Epidural blood patch for the treatment of spontaneous and iatrogenic orthostatic headache. Pain Physician. 2016;19(8):E1115-E1122.
Last reviewed July 2021 by
EBSCO Medical Review Board
Marcin Chwistek, MD
Last Updated: 9/28/2021
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at firstname.lastname@example.org. Our Health Library Support team will respond to your email request within 2 business days.