Pain is an unpleasant sensory and emotional experience associated with acute and possible damage. It has a protective role because it protects the body from damage and helps to maintain organ function, the organism as a whole. Pain is one of the world's health problems, the most common causes of pain are injury, surgery, malignancy, and hormonal disorders. Delineation of pain is to: physical, mental and physical psychogenic caused. Physical pain is a symptom for which patients most often asked for medical help, the pain is a warning mechanism to inform that there is a tissue injury or dysfunction of individual organs. Mental pain and suffering often called. It is a state of deep sadness often associated with fear, anxiety and other negative emotions that occur after someone, for the individual, irreparable and significant loss. The relationship between pain and injury is not simple, that is possible: injury without pain, without injury, pain disproportionate to the severity of injury, pain after healing of injuries. Injuries without pain - some people are born without sensitivity to pain. This very rare genetic disorder is known as analgesia. Pain without injury - common in so-called. psychogenic pain where the pain occurs after mental tension and where there are no organic damage. Pain disproportionate the difficulty of injury- may occur in insignificant physical processes that do not have great physical significance for the total health of the individual, and cause very severe pain. The pain after healing injury - very common after injuring nerves and known examples of such pain are phantom pain and causalgia. Causalgia is very severe pain, burning type that occurs because of injury of damage causing their peripheral sensory nerves. Phantom pain is common in people who are missing the lower part of the body (leg, hand, and breast). Patients feel pain in a body part that they amputated therefore no longer exists, and so clearly perceived the pain that they feel that the body is still there. In addition to causing health, physical and mental difficulties, pain significantly affects the economic situation of the individual and society at large, so big attention should be paid to its prevention and cure. The doctor's obligation is to disclose the cause of pain and mitigate / eliminate pain. Access to treatment of chronic pain, sometimes acute, is multidisciplinary and should be administered pharmacological and non-pharmacological treatments (physical therapy, TENS, ultrasound, laser, exercise, heat and cold), and sometimes pain treatment methods (acupuncture, chiropractic and other) . While there has been great progress in the treatment of chronic pain, many patients are still suffering because of poor pain assessment and treatment.