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    WebMD Symptom Checker

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    WebMD Symptom Checker

    Joint instability, Joint pain, Lump or bulge (Knee (patella)) and Lump or bulge (Popliteal fossa)

    WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms joint instability, joint pain, lump or bulge (knee (patella)) and lump or bulge (popliteal fossa) including Trauma or injury, Abscess, and Epidermal (sebaceous) cyst.

    There are 4 conditions associated with joint instability, joint pain, lump or bulge (knee (patella)) and lump or bulge (popliteal fossa). The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.

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