MedlinePlus Medical Encyclopedia: Baker's cyst

Skip navigation

Medical Encyclopedia

Baker's cyst

A baker's cyst is seen as a swelling behind the knee. It forms when joint fluid collects behind the knee. The swelling may be due from inflammation or from other causes, like arthritis. The condition can be seen in both adults and children.

Update Date: 7/25/2007

Updated by: Andrew L. Chen, M.D., M.S., Orthopedist, The Alpine Clinic, Littleton, NH. Review provided by VeriMed Healthcare Network.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 1997-2008, A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.