Epidemiology of neuropathic pain

The prevalence of neuropathic pain varies according to specific situations, due to multiple etiologies and manifestations, and may be located anywhere in the nervous system, being classified as peripheral or central. The classification has been modified with a certain frequency by the International Association for the Study of Pain in recent years, and may, for example, be classified as possible, probable or permanent. This brief review analyzes aspects of neuropathic pain epidemiology in general Brazilian population and in different clinical situations.