A member asked:

I have mild medial compartment osteoarthritis in my left knee as well as joint effusion. besides arthritis, what else could be the cause of water on the knee?

A doctor has provided 1 answer
Dr. Sue Ferranti answered

Specializes in Internal Medicine

There are many things, including trauma, that can cause a joint effusion. If there is arthritis present, this may be the etiology. Seeing an orthopedic doctor may be the best way to determine what treatment, if any, is needed as well as the etiology of the fluid. Good luck to you!

Answered 4/23/2023

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