Hi, thanks for writing to HCM.
As your xrays are negative for a fracture, the other possibilities for the swelling could be INFLAMMATION or INFECTION.
Infective causes tend to produce Fever and the swelling will result in suppuration (pus formation) if left untreated. In your case this is unlikely as it has been more than 2 months.
So the other possibility is a inflammatory cause. The common causes for inflammatory arthralgia
are Rheumatoid arthritis
, Gout and pseudogout
, Reactive arthralgia, tuberculosis
You need a detailed evaluation to establish the diagnosis.
I suggest you to consult an orthopedic surgeon or a rheumatologist
for further workup and management .
Hope this information is helpful. Good day