For a diagnosis of fibromyalgia, how many areas must a woman have tenderness?

For a diagnosis of fibromyalgia, a woman must have tenderness in 11 specific tender points out of a total of 18 designated areas on the body. This criterion is part of the American College of Rheumatology's classification for fibromyalgia. The tender points are strategically located across various areas, including the neck, shoulders, chest, hips, and knees, and they are assessed for pain upon palpation.

The required number of tender points is significant because it helps differentiate fibromyalgia from other conditions that may have similar symptoms, such as chronic fatigue syndrome or rheumatic diseases. Identifying tenderness in 11 areas demonstrates both a widespread pain pattern and sensitivity, which are hallmark features of fibromyalgia. This specificity aids healthcare professionals in making an accurate diagnosis and in formulating effective treatment plans tailored to the individual’s needs.