Pain Management Issues: an online course

Two Definitions of Pain

“Pain is whatever the experiencing person says it is; existing
whenever he or she says it does.”
—Margo McCaffrey, RN MS

The most widely used definition of pain:

An “unpleasant sensory and emotional experience associated with
actual or potential tissue damage, or described in terms of such
damage.’’
—The International Association for the Study of Pain (IASP)

http://erlewinedesign.com/end-of-life-care/202definitions.htm