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The left side of the image is showing the temperature increase caused by an insect bite after about 28 hours. Most arthropod bites and stings cause self-limited redness, itchiness and/or pain around the site.
The photograph on the "Body-focussed repetitive behaviour" page labelled dermatotillomania (the photo of the hand that has callouses on the knuckles) looks more like a picture of dermatophagia. It matches the description in the cited article "Dermatophagia simulating callosities", which describes a 15-year-old boy with calluses on his knuckles ...
For people who can’t stop biting their nails or picking at their skin, a new study suggests that a simple technique could help. Body-focused repetitive behaviors — compulsively pulling or ...
Trombiculid mites are found throughout the world. In Europe and North America, they tend to be more prevalent in the hot and humid regions. In northern Europe, including the British Isles where they are called harvest mites, the species Neotrombicula autumnalis are found during the summer and autumn (in French, harvest mites are called aoûtat because they are common in August [19]).
Chafing is an irritation or superficial abrasion of skin caused by friction, moisture or irritating fabric.Prolonged rubbing on the skin may result in skin sting or burn, and development of a mild, red rash or boils; and in severe cases may include swelling, bleeding, or crusting.
The cause is the chronic parafunctional activity of the masticatory system, which produces frictional, crushing, and incisive damage to the mucosal surface, and over time, the characteristic lesions develop.
Bruxism is excessive teeth grinding or jaw clenching. It is an oral parafunctional activity; [1] i.e., it is unrelated to normal function such as eating or talking. Bruxism is a common behavior; the global prevalence of bruxism (both sleep and awake) is 22.22%. [2]
Dysesthesia is an unpleasant, abnormal sense of touch. Its etymology comes from the Greek word "dys," meaning "bad," and "aesthesis," which means "sensation" (abnormal sensation).