A Baker's cyst, also called a popliteal cyst, is a fluid-filled swelling that develops at the back of the knee.
Our Health A-Z contains more information on Bakers cyst.
Osteoarthritis is a condition that causes joints to become painful and stiff.
Our Health A-Z contains more information on Osteoarthritis.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.