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OCD. Dermatophagia (from Ancient Greek δέρμα — lit. skin and φαγεία lit. eating) or dermatodaxia (from δήξις, lit. biting) [ 3] is a compulsion disorder of gnawing or biting one's own skin, most commonly at the fingers. This action can either be conscious or unconscious [ 4] and it is considered to be a type of pica.
They do not actually "bite", but instead form a hole in the skin called a stylostome and chew up tiny parts of the inner skin, thus causing irritation and swelling. The itching is accompanied by red, pimple-like bumps or hives and skin rash or lesions on a sun-exposed area. For humans, itching usually occurs after the larvae detach from the skin.
The Marathi people ( / məˈrɑːti /; [ 8] Marathi: मराठी लोक, Marāṭhī lōk) or Marathis (Marathi: मराठी, Marāṭhī) are an Indo-Aryan ethnolinguistic group who are native to Maharashtra in western India. They natively speak Marathi, an Indo-Aryan language.
Danita Delimont/Alamy Stock Photo/File. A 72-year-old Montana man shot and killed a grizzly bear after it attacked him while he was alone picking huckleberries, according to the Montana Department ...
Russell's sign, named after British psychiatrist Gerald Russell, is a sign [ 1] defined as calluses on the knuckles [ 2] or back of the hand due to repeated self-induced vomiting over long periods of time. The condition generally arises from the patient's knuckles making contact with the incisor teeth during the act of inducing the gag reflex ...
2.3% [ 6] Obsessive–compulsive disorder ( OCD) is a mental disorder in which an individual has intrusive thoughts (an obsession) and feels the need to perform certain routines ( compulsions) repeatedly to relieve the distress caused by the obsession, to the extent where it impairs general function. [ 1][ 2][ 7] Obsessions are persistent ...
Snakebite. A snakebite is an injury caused by the bite of a snake, especially a venomous snake. [ 9] A common sign of a bite from a venomous snake is the presence of two puncture wounds from the animal's fangs. [ 1] Sometimes venom injection from the bite may occur. [ 3] This may result in redness, swelling, and severe pain at the area, which ...
Domestic rats differ from wild rats in many ways. They are calmer and less likely to bite; they can tolerate greater crowding; they breed earlier and produce more offspring; and their brains, livers, kidneys, adrenal glands, and hearts are smaller (Barnett 2002). Brown rats are often used as model organisms for scientific research.