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
Pain in amphibians all vertebrates, including amphibians, probably experience pain, but invertebrates apart from cephalopods probably do not experience pain. Although there are numerous definitions of pain, almost all involve two key components. First, nociception is required. This is the ability to detect noxious stimuli which evoke a reflex response that rapidly moves the entire animal, or the affected part of its body, away from the source of the stimulus. The concept of nociception does not imply any adverse, subjective "feeling" – it is a reflex action. An example would be the rapid withdrawal of a finger that has touched something hot –