1. Home
  2. Health
  3. Surgery

Local Anesthesia Defined

By Jennifer Heisler, RN, About.com

Updated: January 03, 2009

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

Definition: Local anesthesia is a type of pain prevention used during minor procedures to numb a small site where pain is likely to occur without changing the patient's awareness.

A numbing medication is either applied to or injected into the area, sometimes with several small injections, and after a few minutes the area should be completely numb. If the area still has sensation, additional injections or applications may be given to insure total numbness.

Local anesthesia is most commonly associated with dental procedures, where the gum is numbed with an injection of medication, or minor medical procedures like stitches.

More Information: All About Anesthesia

Alternate Spellings: anesthaesia,
Examples: Before her root canal she received a local anesthetic, numbing the area and preventing her from feeling pain when the tooth was removed.
Explore Surgery
About.com Special Features

Learn how you can reduce your your numbers with these nutrition and exercise tips. More >

Keep yourself, and your family, happy and healthy this fall with these tips. More >

We comply with the HONcode standard for trustworthy health information: verify here.
  1. Home
  2. Health
  3. Surgery
  4. Glossary
  5. Local Anesthesia Defined-What is Local Anesthesia

©2009 About.com, a part of The New York Times Company.

All rights reserved.