COVID-19 Resources & Information | Testing | Vaccination | Visitor Policy and Hours
View All Services
Find a New Primary Care Provider
Search by Specialty
View All Locations
Discover classes, events, tours, and groups that fit your interests.
Home > Be Healthy > Health Library > Peripheral Nerve Blocks for Anesthesia
A peripheral nerve block is a shot of numbing medicine around a specific nerve or group of nerves. It can be used to numb a part of the body (often an arm or a leg) for a procedure. It may also help control pain after the procedure.
The doctor may use ultrasound or another method to help guide the needle that will be used for the nerve block.
After finding the right spot, the doctor uses a tiny needle to numb the skin. Then the doctor puts the nerve block needle into the numbed area and injects numbing medicine near the nerves. If you are awake, you may feel some pressure. But you should not feel pain.
The nerve block is often used with general anesthesia or with medicine that makes you feel relaxed or sleepy during the procedure. Or the nerve block may be all that's needed. In that case, you can stay awake without feeling pain.
Problems after a nerve block are not common. There is a small risk of nerve damage, infection, or bleeding. In rare cases, the medicines used can affect the central nervous system, cardiovascular system, and respiratory system (airway and lungs).
Current as of:
February 16, 2022
Author: Healthwise StaffMedical Review: Adam Husney MD - Family MedicineJohn M. Freedman MD - AnesthesiologyHeather Quinn MD - Family Medicine
Current as of: February 16, 2022
Author: Healthwise Staff
Medical Review:Adam Husney MD - Family Medicine & John M. Freedman MD - Anesthesiology & Heather Quinn MD - Family Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2022 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.