I can only walk to the mailbox, and I’m in a lot of pain. -- J.E. ANSWER: A Baker’s cyst is a fluid-filled sac behind the knee. In older adults, they are nearly always a result of knee damage.

A Baker’s cyst will not cause long-term harm, but it can be annoying and painful. A cortisone injection can reduce the inflammation, though it doesn’t always prevent recurrence.

by Anthony L. Komaroff, M.D. Jun 15, 2012 Jun 15, 2012 0 MRI MAY FIND CAUSE OF RECURRING BAKER'S CYST ...

Q: Please give me all the information you can about Baker’s cysts. Thank you. — B.K., Westbrook, Minn. A: Baker’s cysts (also called popliteal cysts) result from a form of ...

Medically reviewed by Oluseun Olufade, MD Water on the knee, or knee effusion, refers to the buildup of fluid in and around the knee joint. This condition leads to a painful, swollen knee and can be ...