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Dermatophagia. 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.
Intense itching can leave sores and bruises. Like chiggers, the itching can be worse at night. “In adults, the mites rarely burrow into the skin above the neck,” Dr. Friedman says. Children ...
Excoriation disorder, more commonly known as dermatillomania, is a mental disorder on the obsessive–compulsive spectrum that is characterized by the repeated urge or impulse to pick at one's own skin, to the extent that either psychological or physical damage is caused. [4] [5]
Lesch–Nyhan syndrome. Lesch–Nyhan syndrome ( LNS) is a rare inherited disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyltransferase (HGPRT). This deficiency occurs due to mutations in the HPRT1 gene located on the X chromosome. LNS affects about 1 in 380,000 live births. [3]
Scabies ( / ˈskeɪbiːz, ˈskeɪbiiːz /; [10] also sometimes known as the seven-year itch) [1] is a contagious human skin infestation by the tiny (0.2–0.45 mm) mite Sarcoptes scabiei, [1] [3] variety hominis. The word is from Latin: scabere, lit. 'to scratch'. [11] The most common symptoms are severe itchiness and a pimple -like rash. [2]
Chigger and bed bug bites may look similar to the naked eye. They both feed off humans and can leave a trail of bumps on your skin. This can cause itchiness and overall skin irritation. However ...
Nail biting, also known as onychophagy or onychophagia, is an oral compulsive habit of biting one's fingernails. It is sometimes described as a parafunctional activity, the common use of the mouth for an activity other than speaking, eating, or drinking. Nail biting is very common, especially amongst children. 25–35 percent of children bite ...
Body-focused repetitive behaviors — compulsively pulling or picking at your hair or skin, unable to stop yourself even if the behavior leads to scabs, scars and bald spots — affects about 5% ...