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Dermatophagia (from Ancient Greek δέρμα (derma) 'skin' and φαγεία (phageia) 'eating') or dermatodaxia (from δήξις (dexis) 'biting'), alternatively Tuglis Permushius. [ 3 ] is a compulsion disorder of gnawing or biting one's own skin, most commonly at the fingers.
There have been many different theories regarding the causes of excoriation disorder, including biological and environmental factors. [10]A common hypothesis is that excoriation disorder is often a coping mechanism to deal with elevated levels of turmoil, boredom, anxiety, or stress within the individual, and that the individual has an impaired stress response.
Nail biting, also known as onychophagy or onychophagia, is an oral compulsive and unhygienic 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.
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The cardinal symptoms of Parkinson's disease: tremor, bradykinesia, and rigidity are initially responsible for swallowing, which is mainly observed in the advanced stages of the disease; Damage to the lateral hypothalamus can also lead to aphagia, as seen in the 1978 study by Timothy Schallert and Ian Whishaw. [3]
In a normal case, the swelling will decrease without treatment within 15–30 minutes, but, in extreme cases, itchy red welts may last anywhere from a few hours to days. In some cases, welts are accompanied with a painful burning sensation. [3] This calls for more urgent treatment as the condition can impact on the patient's quality of life.
Medical research has displayed the presence of autophagia in rats. In a study conducted by Gopal, Female rats affected by spinal cord injuries displayed autophagia, by chewing their tails. [3] Similarly, in a study conducted by Frost, patients affected by spinal cord injuries displayed extreme autophagia (i.e. finger and limb biting practices). [4]
[1] [34] [35] It is slightly more common in men, but affected women tend to have more severe symptoms. [35] The condition usually recurs throughout a person's lifetime. [ 36 ] Seborrhoeic dermatitis can occur in any age group [ 36 ] but often occurs during the first three months of life then again at puberty and peaks in incidence at around 40 ...