How is a "Baker's cyst" typically treated?

A "Baker's cyst," also known as a popliteal cyst, commonly develops as a result of swelling in the knee joint, often due to arthritis or other knee issues. The treatment approach aims to reduce the cyst's size, alleviate discomfort, and address the underlying cause.

The correct method of treatment involves aspiration, where fluid is drawn out of the cyst using a needle, alongside compression techniques to help minimize swelling. Physical therapy may be introduced to strengthen the surrounding muscles and improve the knee's function. This comprehensive approach addresses the immediate problem of the cyst while also promoting healing and stability in the joint.

While medications can help manage symptoms, they do not directly treat the cyst itself, which explains why solely relying on them (as suggested in one of the options) is insufficient. Surgery may be necessary in certain cases where conservative treatments fail, but it is not always required, making the assertion that surgery is always needed inaccurate. Rest and immobilization might provide temporary relief but do not resolve the underlying issue leading to the cyst's formation. Therefore, the combination of aspiration, compression, and physical therapy is the most effective and commonly recommended course of action for treating a Baker's cyst.