Rectal pain previously unconscious muscle movements) so that spasms occur less frequently or not at all. An anorectal abscess is an infection that forms a pocket of pus within the tissues around the anus. It is treated surgically by incision and drainage. Bacterial, viral, and protozoal infections may occur in the area surround the rectum. These may be the result of a sexually transmitted disease. Hemorrhoids or rectal foreign body. Rectal pain Rectal pain is the symptom of pain in the area of the rectum. A number of different causes (68) have been documented. One of the most common causes of rectal
Chronic pain disease affecting brain structure and function. Magnetic resonance imaging studies have shown abnormal anatomical and functional connectivity, even during rest involving areas related to the processing of pain. Also, persistent pain has been shown to cause grey matter loss, reversible once the pain has resolved. These structural changes can be explained by the phenomenon known as neuroplasticity. In the case of chronic pain, the somatotopic representation of the body is inappropriately reorganized following peripheral and central sensitization. This maladaptive change results in the experience of allodynia or hyperalgesia. Brain activity in individuals with chronic pain, measured via electroencephalogram (EEG), has