Ganglion cysts are small, benign, fluid-filled sacs that usually form on or near a joint or the covering of a tendon. If they cause pain or difficulty moving the joint, a doctor may remove them ...

What Is a Subchondral Bone Cyst? It's a fluid-filled sac that forms in one or both of the bones that make up a joint. They're especially common at the knee or hip. The cysts show up just under the ...

Baker’s cysts usually develop in people with degenerative joint diseases, such as osteoarthritis or rheumatoid arthritis. They may also develop after trauma to the knee from a fall or other injury.

Medically reviewed by Anita C. Chandrasekaran, MDMedically reviewed by Anita C. Chandrasekaran, MD Pain in the back (posterior) portion of the knee is relatively common. Many things could be to blame, ...

Medically reviewed by Oluseun Olufade, MD Most back of the knee pain, known as posterior knee pain, comes from an injury. Certain health conditions, such as arthritis, cysts, nerve damage, and ...

Q: What is a Baker's cyst, and what is the best way to get rid of it? A: A Baker's cyst is a collection of fluid behind the knee. It was named after a British surgeon, William Baker, who described ...