Widespread Pain Index

The Fibromyalgia Widespread Pain Index or WPI is a patient rating that assesses how much of the body regularly causes pain. It was introduced by the American College of Rheumatology in the 2010 diagnostic criteria for fibromyalgia.

WPI and Tender points
The Widespread Pain Index replaces the older tender point scoring and does not rely on a trained clinician pressing on painful areas.

WPI scoring
The WPI score is between 0 and 19. Each of the 19 tender point areas in the soring diagram is given a score of 1 (pain present at least weekly), or 0 (no pain or pain present less often).




 * Left shoulder girdle
 * Right shoulder girdle
 * Left hip (buttock, trochanter)
 * Right hip (buttock, trochanter)
 * Left jaw
 * Right jaw
 * Left upper arm
 * Right upper arm
 * Left upper leg
 * Right upper leg
 * Left lower arm
 * Right lower arm
 * Left lower leg
 * Right lower leg
 * Upper back
 * Lower back
 * Chest
 * Neck
 * Abdomen

The WPI is the total number of areas that are painful, giving a maximum value of 19. Pain severity is not scored in the WPI.

After WPI value is calculated, the Fibromyalgia Symptom Severity (SS) is worked out, and the two scores together area used to determine if someone has fibromyalgia.