Satish Kumar
Rheumatoid arthritis is a common rheumatological disorder of unknown cause. The development of rheumatological disorders like rheumatoid arthritis depends on the interaction between genetic background and number of environmental factors. Number of environmental factors have been implicated in the aetiology of rheumatic diseases which include infections like Epstein Bar Virus (EBV) Mycobacterium tuberculosis, Escherichia coli, Proteus mirabilis, and parvovirus B19. The other environmental factors include sunlight, cold climate, smoking, drugs and adjuvants, diet, exercise, occupation, radiation exposure, drinking water, psychological status, air pollution, chemicals, drugs, socioeconomic status, geographic location, hot and cold climate, occupation and alcohol.