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Baker cyst

  • Overview


    Have you heard of a Baker cyst? It’s a fluid-filled growth that can be found behind the knee, causing a noticeable bulge and tightness. Sometimes this type of cyst can also cause pain, worsening with activity or when you fully straighten or bend your knee.

    Typically, a Baker cyst results from an underlying issue with the knee joint, such as arthritis or a cartilage tear. This can cause the knee to produce an excess amount of fluid. While a Baker cyst can be uncomfortable, treating the root cause of the issue can provide relief.

  • Symptoms


    It is possible to have a Baker cyst without experiencing any pain or noticing it. However, symptoms may include swelling behind the knee and in the leg, knee pain, stiffness, and difficulty fully flexing the knee. These symptoms may worsen after physical activity or prolonged periods of standing.

  • When to see a doctor


    If you experience pain and swelling behind your knee, seeking medical attention is essential. While rare, these symptoms could indicate a blood clot in a leg vein.

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  • Causes


    The leg’s smooth swinging motion and reduced friction between the knee’s moving parts are made possible by a lubricating synovial (sih-NO-vee-ul) fluid. However, excessive production of this fluid can occur due to underlying conditions, resulting in fluid accumulation at the back of the knee and forming a Baker cyst. This condition can be caused by inflammation of the knee joint, which is associated with various types of arthritis, or a knee injury like a cartilage tear.

  • Risk factors


    Baker cyst, also known as popliteal cyst, is a condition characterized by swelling at the back of the knee joint. It is caused by the accumulation of synovial fluid, which lubricates the joint, in a sac called bursa. Although the exact cause of Baker cyst is unclear, certain factors can increase the risk of developing the condition. These include knee injuries, arthritis, cartilage tears, and other inflammatory or degenerative joint diseases. Additionally, being overweight or obese can also increase the risk of Baker cyst. Treatment for Baker cyst depends on the severity of symptoms and may involve rest, ice, compression, and/or physical therapy.

  • Prevention


    Baker’s cysts are fluid-filled sacs that emerge behind the knee and can cause pain and discomfort. While there is no definitive way to prevent the occurrence of Baker’s cysts, there are a few steps you can take to reduce the risk of developing them. Firstly, maintaining an active lifestyle and stretching regularly can help to keep the knee joint flexible and healthy. Secondly, avoiding activities that put extreme pressure on the knee joint, such as running or jumping, can help to reduce the likelihood of developing Baker’s cysts. Finally, seeking prompt treatment for knee injuries or conditions such as arthritis can reduce the risk of developing Baker’s cysts.

  • *Please note that the information provided in the article is for reference purposes only. It is essential to consult a doctor before applying any of the suggestions mentioned.

Content Details

Medical info from Mayo Clinic, for reference only. Visit Hoan My for better advice.

Last updated on: 07/08/2023