Harvard Health Letter

Could that joint pain be rheumatoid arthritis?

How to distinguish the symptoms from other conditions, and what to do about treatment. When your joints ache, you may chalk it up to an old injury or to osteoarthritis — the wearing away of cartilage that’s common in older age. But for two million people in the United States, aching joints are caused by rheumatoid arthritis (RA) — when the immune system mistakenly attacks the tissues lining the joints. …

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