Arthritis Isn't One Thing. And the Difference Can Cost You.

"Arthritis" covers more than 100 conditions. Two of them get confused constantly, and telling them apart early changes everything for one of them.

Most people file arthritis under "getting old, nothing you can do." Sore joints, part of the deal, no point making a fuss.

That instinct is wrong in a way that costs people. Arthritis isn't one condition, and it isn't only an older person's problem. Half the people in Canada living with it are under 65 (Arthritis Society Canada, 2023). What you do in the first few months can change how the rest of it goes. But only if you know which kind you've got.

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Arthritis is an umbrella word. It covers more than 100 conditions, and they don't all behave the same way or need the same treatment (Arthritis Society Canada, 2024). About 1 in 5 adults in Canada, roughly 6 million people, live with some form of it. It's the most common chronic disease in the country, ahead of diabetes, heart disease, and cancer (Arthritis Society Canada, 2023).

Two of those conditions get mixed up constantly: osteoarthritis and rheumatoid arthritis. They share the word, and they can both make a joint hurt. Past that, they're almost opposites. Different cause, different pattern, different stakes if you wait.

Osteoarthritis: the wear-and-tear one

Osteoarthritis is the common one. More than 4 million people in Canada have it, more than every other type combined, about ...