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 years, is much different. The pain itself rarely continues to perform a 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.