joint become inflamed or when fluid accumulates inside it.
You may notice that your knuckles look puffy, your fingers appear thicker, or one of your knees looks larger than the other.
Sometimes swelling makes the skin around a joint feel tight or tender. Rings may also become uncomfortable when finger joints swell.
Different types of arthritis can cause swelling in different ways. Rheumatoid arthritis often affects multiple joints, including the small joints of the hands and feet. Osteoarthritis can also cause swelling and changes in the shape of affected joints.
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