Revised definition of pain

Pain

An unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage.

Notes

Pain is always a personal experience that is influenced to varying degrees by biological, psychological, and social factors.

Pain and nociception are different phenomena. Pain cannot be inferred solely from activity in sensory neurons.

Through their life experiences, individuals learn the concept of pain.

A person's report of an experience as pain should be respected.^[1]

Although pain usually serves an adaptive role, it may have adverse effects on function and social and psychological well-being.

Verbal description is only one of several behaviors to express pain; inability to communicate does not negate the possibility that a human or a nonhuman animal experiences pain.

Reference:

Declaration of Montréal. International Association for the Study of Pain. Available at: https://www.iasp-pain.org/DeclarationofMontreal (Accessed on October 29, 2020).

From: Raja SN, Carr DB, Cohen M, et al. The revised International Association for the Study of Pain definition of pain: concepts, challenges, and compromises. PAIN 2020; 161:1976. DOI: 10.1097/j.pain.0000000000001939. Copyright © 2020 International Association for the Study of Pain. Reproduced with permission from Wolters Kluwer Health. Unauthorized reproduction of this material is prohibited.

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Revised definition of pain