Dr. Dheeraj Kondagari is Expertise in Rheumatology and also well-known arthritis doctor in the circle of ECIL, Dilsukhnagar, LB Nagar, Uppal, and Vanasthalipuram. The cause of Rheumatoid arthritis is not known, it is considered as an autoimmune disease. The components of the immune system attack the soft tissues and will also attack the connective tissue in other parts of the body such as blood vessels and lungs. Due to this, gradually the bone, cartilage and the ligaments of the joints wear away causing deformity. Many unknown factors like viral infections and smoking play a vital role.