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Baker's cyst

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Baker's cyst

A Baker's cyst, also known as a popliteal cyst, is a pocket of joint fluid that forms a lump behind the knee. Often a Baker's cyst is painless, but occasionally this pocket of fluid can tear open and drain into the tissues of the lower leg, causing pain and swelling.

Symptoms include:

  • Swelling behind the knee that may increase when a person stands.
  • Discomfort behind the knee and into the upper calf, especially when the knee is completely bent or straight.

Current as of: July 31, 2024

Author: Ignite Healthwise, LLC Staff

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This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice to your personal condition, please consult your doctor. Medical advice disclaimer.