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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. This action can either be conscious or unconscious [4] and it is ...
Tangle-web spiders. One genus of the tangle web spiders has venom which is known to be medically significant. This genus, the widow spiders of genus Latrodectus, has caused human fatalities. The other genus, Steatoda, the false widow spiders, have bites that can cause pain and erythema but only around 30% of bites lead to systemic symptoms.
The fingers have been compulsively picked and chewed in someone with excoriation disorder and dermatophagia. Compulsive picking of the face using nail pliers and tweezers. Episodes of skin picking are often preceded or accompanied by tension, anxiety, or stress. [6] In some cases, following picking, the affected person may feel depressed. [5]
Loxoscelism (/ l ɒ k ˈ s ɒ s ɪ l ɪ z əm /) is a condition occasionally produced by the bite of the recluse spiders (genus Loxosceles). The area becomes dusky and a shallow open sore forms as the skin around the bite dies . It is the only proven type of necrotic arachnidism in humans.
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 ...
Decoupling[ 1] is a behavioral self-help intervention for body-focused and related behaviors ( DSM-5) such as trichotillomania, onychophagia ( nail biting ), skin picking and lip-cheek biting. The user is instructed to modify the original dysfunctional behavioral path by performing a counter-movement shortly before completing the self-injurious ...
These bumps can appear as red, pink, brown, or your skin color. They are typically hard and round, symmetrical, and anywhere from half a centimeter to two centimeters wide. Plaques might also ...
Many species of arthropods (insects, arachnids, millipedes and centipedes) can bite or sting human beings. These bites and stings generally occur as a defense mechanism or during normal arthropod feeding. While most cases cause self-limited irritation, medically relevant complications include envenomation, allergic reactions, and transmission ...