What is the main cause of rheumatoid arthritis?

The cause of RA is not yet fully understood, although doctors do know that an abnormal response of the immune system plays a leading role in the inflammation and joint damage that occurs. The cause of RA is not yet fully understood, although doctors do know that an abnormal response of the immune system plays a leading role in the inflammation and joint damage that occurs. read more

While the exact cause of rheumatoid arthritis is unknown, there are several risk factors that could increase your chances of getting it. WebMD explains how sex, genetics, and even smoking can play a role in causing RA. read more