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Dermatophagia (from Ancient Greek δέρμα — lit. skin and φαγεία lit. eating) or dermatodaxia (from δήξις, lit. biting) is a compulsion disorder of gnawing or biting one's own skin, most commonly at the fingers.
Signs and symptoms Compulsive picking of the knuckles (via mouth) illustrating potentially temporary disfiguration of the distal and proximal joints of the middle and little fingers. The fingers have been compulsively picked and chewed in someone with excoriation disorder and dermatophagia.
Body-focused repetitive behavior. Dermatillomania (picking of the skin) of the knuckles (via mouth), illustrating disfiguration of the distal and proximal joints of the middle and little fingers.
Symptoms manifest from inflammatory reactions due to the fungal antigens. The rapid turnover of desquamation, or skin peeling, due to inflammation limits dermatophytoses, as the fungi are pushed out of the skin. Dermatophytoses rarely cause serious illness, as the fungi infection tends to be limited to the superficial skin.
Other forms of pica include dermatophagia, and compulsion of eating one's own hair, which can form a hairball in the stomach. Left untreated, this can cause death due to excessive hair buildup. Self-cannibalism can be a form of self-harm and a symptom of a mental disorder.
As recently as 2022, a study found that signs of heart disease look different in women, and that likely contributes to why they're diagnosed later than men, NBC News reported. “Heart disease is ...
Often, the adjacent skin is bitten off, too, which is called perionychophagia, a special case of dermatophagia. Biting nails can lead to broken skin on the cuticle. When cuticles are improperly removed, they are susceptible to microbial and viral infections such as paronychia. Saliva may then redden and infect the skin.
Other abnormal symptoms include breathlessness accompanied by chest pain, heart palpitations and coughing up blood.
Signs and Symptoms (Presentation) Symptoms include lack of sweat glands, thin hair, brittle nails, mottled skin, and lack of fingerprints. [6] It is also characterized by a widespread, early-onset reticulate hyperpigmentation. [7]
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