Conversation: The conversation between human and AI assistant.
[|Human|] Im a 56 male in good health But do have diabetes typ 2. About 4 weeks ago I fell as I was running hurt my right knee it is still sore to kneel on it and Have found the knee is full of fluid warm to the touch. I can move the fluid around under the skin. Can drain the fluid with a needle? and what is the fluid? Thank you
[|AI|]  Hello, I have read your query. Knee effusion can be monoarticular rheumatoid arthritis. I will advise blood test like RA factor, CCP, ESR, complete blood count, HLA B27 to confirm it. Synovial fluid examination may help to confirm diagnosis. Another possibility can be knee infection. Blood investigation will help in diagnosis. If swelling persists then you may need to do MRI again to see for any functional defect. Consult your doctor to Chat Doctor. Hope this answers your query. If you have additional questions or follow-up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take care.