Everyone has experienced pain at some time or other. A cut, a sports injury, childbirth, surgery, or kidney stones all can produce varying degrees of pain. In these cases, the pain has a known cause and resolves when the cause is no longer there. This type of pain is acute pain. Acute pain performs a function – it warns the body of a problem or injury.
Chronic pain, which is pain lasting months or recurring over years, is much different. The pain itself rarely continues to perform any useful function. Chronic pain can be quite disabling, often preventing people from working and enjoying life. It can lead to people feeling isolated, angry, frustrated, and guilty.