Baker’s Cyst (Popliteal Cyst)
What is a Baker’s Cyst (Popliteal Cyst)? A Baker’s cyst (or Baker cyst), also known as a popliteal cyst, is a is a fluid-filled cyst that causes swelling in the popliteal space, the space behind the knee. It causes stiffness and knee pain and a feeling of tightness behind your knee. The pain can get…