What is the cause of high rheumatoid factor?

Rheumatoid factor is high due to viral or bacterial infection. The disease has a large genetic relationship, may also be caused by viral infection, in addition to long-term living and working in wet and cold environment will increase the risk of disease. Normal will cause pain in the wrist and toes, if not treated in time, will also cause swelling and pain in various joints, serious will also cause deformity. To cause enough attention, it is best to go to the hospital as soon as possible for laboratory tests.