Arthritis is the leading cause of disability in the United States. Learn about types of arthritis and the role of arthritis testing.
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Joint pain, redness, or swelling? Examining synovial fluid, which surrounds and lubricates your joints, may reveal what is causing the problem.
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Gout is a common form of arthritis that causes episodes of intense pain and swelling in the joints. Learn more about tests that are used to diagnose gout.
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Does a certain food not sit well with you? Learn the basics about food sensitivities and intolerances and what kinds of tests are available to identify them.
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Wondering how food allergies are diagnosed? Learn about how food allergies are different from intolerances and the tests that can help identify food allergies.
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