Also known as a popliteal cyst, a Baker’s cyst is a fluid-filled lump behind the knee. The condition can form as a result of an injury, cartilage tear, rheumatoid arthritis, or osteoarthritis. However, it is caused anytime a sac of tissue behind the knee is filled with joint fluid. In mild cases, a Baker’s cyst may not cause any pain or noticeable signs. Likewise, it can also disappear on its own. If the cyst grows too large, you might experience symptoms and need treatment.
Swelling in the area of the cyst is common. If you notice an uncomfortable, swollen lump behind your leg you might have a Baker’s cyst. The swelling may even be in your leg, too. After standing for a long period of time, the symptom will get worse. See a doctor if you experience this particular symptom of a Baker’s cyst.
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