The acute pain is defined as short on time of implication a pain with easily identified reason. The acute pain is a prevention to an organism about danger of organic damage existing at present or diseases. Often proof and acute pain is accompanied also by an aching pain. The acute pain usually concentrates in a certain site before it somehow will extend more widely. This type of a pain usually well gives in to treatment.
The chronic pain was originally defined as a pain which proceeds about 6 months and more. Now it is defined as a pain which persistently remains more longly that corresponding interval of time during which it usually should come to the end. Often it more difficult for treatment, than an acute pain. The special attention is required at the reference to any pains, which steels chronic. Certainly, regarding extreme cases when business comes too far, neurosurgeons can perform difficult operation on excision of separate parts of a brain of the patient to cope with chronic pains. And then postoperative patients will still continue to feel a pain, but they will not feel any accompanying emotions.
Sensations of a physiological pain share on groups for the reasons of occurrence.