Are you experiencing pain, swelling or feeling tightness behind your knee? These symptoms could indicate a Baker’s cyst.
At Banner Health, we specialize in diagnosing and treating Baker cysts, providing the care and support you need to return to your daily life.
A Baker’s cyst, also known as popliteal cyst or popliteal synovial cyst, is a fluid-filled swelling that forms behind the knee. It’s named after the doctor who first described it, William Morrant Baker.
A Baker’s cyst is filled with synovial fluid (lubricating fluid usually found inside the knee joint). This fluid helps the leg swing smoothly and reduces rubbing (friction) between the moving parts of the knee.
Sometimes, an underlying condition can cause the knee to produce too much fluid. This fluid can build up and leak into the extra space (or form a pocket like pouch) behind the knee. The cyst can vary in size from very small to large. Rarely does it develop on both knees at the same time.
A Baker’s cyst is usually caused by an underlying problem in the knee joint, such as:
Anyone can develop a Baker’s cyst. However, some people might be more likely to develop this type of cyst:
A Baker’s cyst might not cause any symptoms. It will more often be seen on an imaging test, like an MRI, done for other reasons. If you do have symptoms, they might include:
These symptoms usually worsen when standing for a long time or being active. If your knee pain or swelling is affecting your daily activities, it’s important to seek medical attention to prevent further complications.
In rare cases, a Baker’s cyst might cause complications. These include:
If you have symptoms of a Baker’s cyst, see your health care provider. They will diagnose a Baker’s cyst with a physical exam, looking for a lump on the back of your knee. Since the symptoms of a Baker’s cyst are like those of other conditions, your provider might order imaging tests, such as an ultrasound, X-ray or MRI. Early diagnosis is key to avoiding long-term complications and pain.
Treating a Baker’s cyst depends on the underlying cause and severity of your symptoms. Usually, you won’t need treatment if you don’t have symptoms. Sometimes a cyst will go away on its own. The fluid in the cyst is absorbed back into your body.
However, if the cyst is large and causes pain, you might need treatment. Options might include:
A Baker’s cyst can return, especially if the underlying cause isn’t treated or addressed. The best way to prevent a Baker cyst is to avoid knee injuries and treat underlying joint issues or chronic conditions.
To reduce the risk of a Baker’s cyst from returning, it’s important to:
Don’t let knee pain or swelling hold you back from living your best life.
Contact us today to schedule an appointment with one of our specialists at Banner Health. Our experienced team provides personalized care tailored to your unique needs. Together, we’ll develop a treatment plan that works for you so you can get back to the activities you love.
Call now or schedule online for an appointment at a Banner Health location near you.