Please note: This information was current at the time of publication. But medical information is always changing, and some information given here may be out of date. For regularly updated information on a variety of health topics, please visit, the AAFP patient education website.

Information from Your Family Doctor

Bursitis of the Elbow, Knee, and Heel


Am Fam Physician. 2017 Feb 15;95(4):online.

  See related article on superficial bursitis

What is bursitis?

Bursitis (ber-CY-tuss) is a swelling of a bursa. A bursa is a small sac that is just below the skin. These sacs are filled with fluid. They are located behind the bony point of an elbow, in front of the kneecap, and behind the heel bone.

What causes it?

  • Too much rubbing and pressure on a bursa can cause it to get irritated and swell. This can happen after kneeling many times, leaning on the tip of the elbow, or wearing shoes that do not fit.

  • A hard blow to the front of the knee, the back of the elbow, or to the heel bone can cause the bursa to bleed or make too much fluid and swell.

  • An insect bite, scratch, or puncture wound close to a bursa can cause skin breaks and infection. People with chronic conditions such as diabetes are more likely to develop an infection in a bursa.

  • People with certain conditions, such as gout, rheumatoid arthritis, or chronic kidney disease, are also more likely to get bursitis.

What are the symptoms?

  • Swelling and pain in a bursa. This may limit the motion of your elbow, knee, or ankle.

  • If you have an infection, you might get a fever.

How is it diagnosed?

Sometimes a doctor can tell if you have bursitis just by examining you. Other times, blood tests, x-rays, and other tests are needed.

How is it treated?

Your doctor may recommend the following:

  • Avoiding activities that can cause rubbing or pressure and pain around the bursa.

  • Wearing pads around the bursa.

  • Wearing well-fitted shoes for heel bursitis.

  • Taking pain medicines such as acetaminophen (Tylenol) or ibuprofen (Advil).

  • Your doctor may remove extra fluid from the bursa with a needle or use antibiotics to treat an infection.

  • In rare cases, you might need to be in the hospital or have surgery.

Where can I get more information?

Your doctor

American Academy of Orthopaedic Surgeons

National Institutes of Health

This handout is provided to you by your family doctor and the American Academy of Family Physicians. Other health-related information is available from the AAFP online at

This information provides a general overview and may not apply to everyone. Talk to your family doctor to find out if this information applies to you and to get more information on this subject.


Copyright © 2017 by the American Academy of Family Physicians.
This content is owned by the AAFP. A person viewing it online may make one printout of the material and may use that printout only for his or her personal, non-commercial reference. This material may not otherwise be downloaded, copied, printed, stored, transmitted or reproduced in any medium, whether now known or later invented, except as authorized in writing by the AAFP. Contact for copyright questions and/or permission requests.

Want to use this article elsewhere? Get Permissions

More in AFP

Editor's Collections


May 2022

Access the latest issue of American Family Physician

Read the Issue

Email Alerts

Don't miss a single issue. Sign up for the free AFP email table of contents.

Sign Up Now

Navigate this Article