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Dermatophagia (from Ancient Greek δέρμα — lit. skin and φαγεία lit. eating) or dermatodaxia (from δήξις, lit. biting) [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 considered to be a type of pica.
The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. Within the latter type, the hairs occur in structures called pilosebaceous units , each with hair follicle , sebaceous gland , and associated arrector pili muscle. [4]
Tinea barbae (beard) Tinea barbæ (also known as "Barber's itch", [11] "Ringworm of the beard", [15] and "Tinea sycosis" [11] : 301 ) is a fungal infection of the hair. Tinea barbae is due to a dermatophytic infection around the bearded area of men. Generally, the infection occurs as a follicular inflammation, or as a cutaneous granulomatous ...
Acne. What it looks like: Acne causes red, discolored bumps on the skin, along with whiteheads, blackheads, and cysts. Other symptoms to note: Acne is the most common skin condition affecting ...
245 million in 2015 [6] (3.34% of world population) Dermatitis is inflammation of the skin, typically characterized by itchiness, redness and a rash. [1] In cases of short duration, there may be small blisters, while in long-term cases the skin may become thickened. [1] The area of skin involved can vary from small to covering the entire body ...
What it looks like: Rosacea is a common inflammatory skin condition that causes patches of redness on the face or a general "flushed" look, Lipner explains. Different types of rosacea may cause ...
Rosacea is a chronic skin condition that causes redness, flushing, and small bumps on the face that may be pus-filled, swollen, tender, [and] acne-like, says Dr. Kamangar. The rash can occur ...
Hives, also known as urticaria, is a kind of skin rash with red, raised, itchy bumps. [1] Hives may burn or sting. [2] The patches of rash may appear on different body parts, [2] with variable duration from minutes to days, and does not leave any long-lasting skin change. [2] Fewer than 5% of cases last for more than six weeks (a condition ...