How is a Baker’s cyst diagnosed?

You need a professional medical exam to diagnose a Baker’s cyst. Here are the ways a doctor diagnoses a Baker’s cyst:

  • Taking a medical history: This will include information on previous injury to the knee.
  • X-ray: You will not see the lump through the X-ray, but it will help determine if there is arthritis present in the knee. This can be the cause of the Baker's cyst.
  • Magnetic resonance imaging (MRI) scans: An MRI uses magnetic waves instead of X-rays to show images.
  • Ultrasound test: Ultrasound uses sound waves to determine if the lump is solid or filled with fluid.

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