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What can cause symptoms similar to fibromyalgia?

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Several conditions cause pain, muscle aches, and fatigue, just like fibromyalgia. For example:

Your doctor will want to rule out any of these other problems. She may take a sample of your blood to check your hormone levels or look for signs of inflammation. You may also get X-rays so she can look at your bones.

  • Hypothyroidism: Your thyroid gland doesn’t make enough of a certain hormone.
  • Rheumatoid arthritis or lupus: Problems with your immune system cause swelling and pain.
  • Osteoarthritis: This is the “wear and tear” type of arthritis.
  • Ankylosing spondylitis: This is a specific type of arthritis that causes pain and inflammation in your spine.
  • Polymyalgia rheumatica: This disorder causes widespread pain and stiffness that come on quickly.

From: How Is Fibromyalgia Diagnosed? WebMD Medical Reference

SOURCES:

National Institute of Arthritis and Musculoskeletal and Skin Diseases: “Fibromyalgia.”

National Fibromyalgia Association: “Diagnosis.”

American Academy of Family Physicians: “Fibromyalgia.”

American College of Rheumatology: “2010 Fibromyalgia Diagnostic Criteria -- Excerpt,” “Polymyalgia Rheumatica.”

Mayo Clinic: “Fibromyalgia.”

UpToDate: “Patient education: Fibromyalgia (Beyond the Basics).”

American Chronic Pain Association: “Fibromyalgia: The Information and Care You Deserve.”

Reviewed by Melinda Ratini on August 23, 2017

SOURCES:

National Institute of Arthritis and Musculoskeletal and Skin Diseases: “Fibromyalgia.”

National Fibromyalgia Association: “Diagnosis.”

American Academy of Family Physicians: “Fibromyalgia.”

American College of Rheumatology: “2010 Fibromyalgia Diagnostic Criteria -- Excerpt,” “Polymyalgia Rheumatica.”

Mayo Clinic: “Fibromyalgia.”

UpToDate: “Patient education: Fibromyalgia (Beyond the Basics).”

American Chronic Pain Association: “Fibromyalgia: The Information and Care You Deserve.”

Reviewed by Melinda Ratini on August 23, 2017

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How does the widespread pain index (WPI) help diagnose fibromyalgia?

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