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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 ...
Severe cases of excoriation disorder can cause life-threatening injuries. For example, in one reported case, a woman picked a hole through the bridge of her nose, which required surgery to fix, and a 48-year-old woman picked through the skin on her neck, exposing the carotid artery. Pain in the neck or back can arise due to prolonged bent-over ...
Dermatology, surgery. An ulcer is a sore on the skin or a mucous membrane, accompanied by the disintegration of tissue. Ulcers can result in complete loss of the epidermis and often portions of the dermis and even subcutaneous fat. Ulcers are most common on the skin of the lower extremities and in the gastrointestinal tract.
The norovirus, a hypercontagious stomach bug, is sweeping across the Northeast, causing schools to shutter and citizens to suffer from violent diarrhea and other alarming symptoms.
Bed bugs are parasitic insects from the genus Cimex, who are micropredators that feed on blood, usually at night. [ 7 ] Their bites can result in a number of health impacts, including skin rashes, psychological effects, and allergic symptoms. [ 5 ] Bed bug bites may lead to skin changes ranging from small areas of redness to prominent blisters ...
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 ...
Lichen planus may be categorized as affecting mucosal or cutaneous surfaces.. Cutaneous forms are those affecting the skin, scalp, and nails. [10] [11] [12]Mucosal forms are those affecting the lining of the gastrointestinal tract (mouth, pharynx, esophagus, stomach, anus), larynx, and other mucosal surfaces including the genitals, peritoneum, ears, nose, bladder and conjunctiva of the eyes.
An insect uses its digestive system to extract nutrients and other substances from the food it consumes. [3]Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, and nucleic acids) which must be broken down by catabolic reactions into smaller molecules (i.e. amino acids, simple sugars, etc.) before being used by cells ...