A Baker’s cyst is a fluid-filled lump that develops behind the knee, often linked to arthritis or cartilage tears. While some cause no discomfort, others can limit movement or even rupture.

Popliteal cysts, commonly known as Baker’s cysts, arise from synovial fluid collecting in the gastrocnemio-semimembranosus bursa behind the knee and are frequently associated with intra-articular ...