Diagnostic features are, delayed blood clotting time, history of previous bleeding, Haemophilia in the family. Rheumatoid Arthritis of the elbow - One or both elbows may be affected, also several other joints as well in conjunction. In the later stages, painful fixed flexion deformity of the elbow. Diagnosis may be achieved by X rays or by Radio Isotopic scanning. Affliction of the several other joints leads to the diagnosis as well.
Blood test is contributory.