Regional Anesthesia



Regional anesthesia is a type of anesthesia. It blocks pain to a part of the body without causing sleep.

Possible Complications

Problems from the procedure are rare, but all procedures have some risk. Your doctor will review possible problems, like:

  • Pain and tenderness around the injection site
  • Bruising, infection, or bleeding of the injection site
  • Headache
  • Decrease in blood pressure
  • Nerve damage
  • Medication mistakenly injected into a vein or artery
  • Organ damage

The risk of problems may be increased with:

  • Smoking
  • Drinking
  • Chronic diseases such as diabetes or obesity



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.

Edits to original content made by Denver Health.

a (Nerve Block)


American Association of Nurse Anesthetists 

American Society of Anesthesiologists 


Canadian Anesthesiologists' Society 

Health Canada https://www. 


Anesthesia basics. Kids Health—Nemours Foundation website. Available at: Updated September 2015. Accessed February 13, 2020.

Regional anesthesia for surgery. American Society of Regional Anesthesia and Pain Medicine website. Available at: Accessed February 13, 2020.