Hi Cilly, osteoarthritis happens as we age, part of the aging process & it's wear & tear type thing. A lot of people have it & have no idea they have it because of no symptoms. Some people can have it at an early age. PA & RA are both autoimmune conditions & are diagnosed by a rheumatologist after appropriate testing.
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Post Edited (straydog) : 5/7/2018 8:34:44 AM (GMT-6)