For many years people assumed that children did not experience chronic pain. However, recent epidemiological studies show that chronic pain, defined as constant or recurrent pain lasting three months or longer, is common in childhood. Empirical studies have characterized chronic pain conditions including headaches, abdominal pain, chest pain, and musculoskeletal pains including fibromyalgia. These pain conditions are associated with school absence, emotional distress, disruption in family activities, and significantly reduced quality of life in both the affected child and their families....