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Arthralgia refers to the diffuse type of joint aches of the variety one feels when they have an illness like influenza (the flu). Arthritis typically involves actual inflammation of the joint where we may see redness, swelling, warmth, loss of joint function and pain at a given joint.
Arthralgia refers to joint pain, whereas arthritis refers to inflammation of the joints. Swollen joints can be painful, stiff, and difficult to move. Arthralgia can be a symptom of arthritis or can be the result of an injury, disease, or infection. Children can also experience arthralgia as they grow.
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