What is the lump behind knee?
Lump behind knee is baker’s cyst. Baker’s Cyst is a fluid-filled cyst that develops on the knee, causing a painful lump. Pain can worsen when the knee is used to move.
Baker Cyst is also called popliteal cyst, usually a result of a problem in the knee joint, such as arthritis or cartilage rupture. Both of these conditions can cause the knee to produce too much fluid, so a cyst baker appears. Handling the root cause will usually relieve pain.
How common is the lump behind knee?
This condition is very common at any age. Generally attacks women compared to men. Baker cysts can be treated by reducing risk factors.
What are the characteristics and symptoms of Baker cysts?
In some cases, the Baker cyst does not cause pain, so you may not notice it. If you experience signs and symptoms, this can include:
- Swelling behind the knee, and sometimes on the leg
- Pain in the legs
- Stiffness and cannot flex your knees perfectly
Symptoms can worsen when you move actively or stand for a long time.
There may be signs and symptoms not mentioned above. If you have concerns about a particular symptom, consult your doctor.
When should you see a doctor for Baker Cyst?
You should contact a doctor if you experience any of the following symptoms:
- Pain and swelling behind the knee
- Lumps behind the knee, which can be a sign of a more serious condition than a fluid-filled cyst
If you have the signs or symptoms above or other questions, consult your doctor. The body of each person is different. Always consult a doctor to handle your health condition.
What causes Baker cysts?
Keep in mind beforehand, that there is a lubricating fluid called synovial fluid which functions to help the foot to swing smoothly and reduce friction between the moving parts of the foot.
But sometimes the knee produces too much synovial fluid, causing a buildup in the area behind the knee (popliteal bursa), causing Baker’s cyst.
This can happen because:
- Inflammation of the knee joint, as occurs in various types of arthritis
- Knee injuries, such as torn cartilage
How is Baker’s cyst diagnosed?
Baker cyst can often be diagnosed with a physical examination.
However, because some symptoms of Baker cysts resemble more serious conditions, such as blood clots, aneurysms or tumors, doctors can perform non-invasive imaging tests, such as foot x-rays, ultrasound, and CT scans, to show images of the knee joint in more detail.
Many clinical conditions have similar symptoms. Your doctor may take additional tests to eliminate other clinical conditions to get a definitive diagnosis.
Lump Behind Knee Treatment – Baker’s cyst Treatment
Sometimes the Baker cyst will disappear by itself. However, if the cyst is large and causes pain, doctors can recommend the following treatments:
Lump Behind knee injection. Doctors can inject corticosteroid drugs, such as cortisone, in the knee to reduce inflammation. This can relieve pain, but does not always prevent the return of cysts.
Fluid drainage of the lump behind knee (knee cyst aspiration). The doctor can remove fluid from the knee joint using a needle. This is called needle aspiration and is often done with an ultrasonic guide.
Physical therapy for baker’s cyst. Cold compresses and crutches can help reduce pain and swelling. Slow movement and muscle strengthening exercises around the knee can also help reduce symptoms and maintain knee function. Cysts associated with osteoarthritis will usually improve with arthritis treatment, so surgery is rarely needed.
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