People with fibromyalgia usually have many "tender points" on their body that hurt when touched or pressed on. These tender points are bilateral, meaning that they are the same on both the left and right side of the body. Most people with fibromyalgia have tenderness on at least 11 of the 18 points shown in this picture. They usually have also had pain throughout the body for at least three months.
Adapted from: Goldenberg, DL, Hosp Pract (Off Ed) 1989; 24:39.