Knee to calf hair cool, is rheumatoid disease caused by it?

Knee to subside hair cool, indicating that local blood circulation is not smooth, more common in patients with various arthritis, such as rheumatoid arthritis, osteoarthritis, etc., and not necessarily rheumatoid arthritis. You can go to the hospital to do X-ray, rheumatism full set, erythrocyte sedimentation, C-reactive protein and other examinations, a clear diagnosis.