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

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If your doctor can’t find another reason for your symptoms, she’ll use a two-part process to help figure out if you have fibromyalgia. One part involves the trademark widespread pain on both sides of your body and above and below your waist. The other part measures how bad your symptoms are.

She’ll ask if you’ve had pain in 19 specific places in the past week, including your arms, legs, back, jaw, and neck. This is called the widespread pain index (WPI), and scores range from 0 to 19.

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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What is the symptom severity (SS) scale for fibromyalgia?

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