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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.
Symptoms. Common symptoms in humans include: Nail biting; Pulling hair; Chewing fingers (in extreme cases, leading to amputation) Possible causes. This section will focus on the causes for autophagia in humans. There is no single primary cause for autophagia.
Fingers of a nail-biter. Nail biting, also known as onychophagy or onychophagia, is an oral compulsive habit of biting one's fingernails. It is sometimes described as a parafunctional activity, the common use of the mouth for an activity other than speaking, eating, or drinking.
Signs and symptoms. Tardive dyskinesia is characterized by repetitive, involuntary movements. Some examples of these types of involuntary movements include: Grimacing; Tongue movements; Lip smacking; Lip puckering; Pursing of the lips; Excessive eye blinking; Rapid, involuntary movements of the limbs, torso, and fingers may also occur.
Trigeminal neuralgia (TN or TGN), also called Fothergill disease, tic douloureux, trifacial neuralgia, or suicide disease, is a long-term pain disorder that affects the trigeminal nerve, the nerve responsible for sensation in the face and motor functions such as biting and chewing.
Eosinophilic fasciitis ( / ˌiːəˌsɪnəˈfɪlɪk ˌfæʃiˈaɪtɪs, ˌiːoʊ -, - ˌfæsi -/ [2] [3] ), also known as Shulman's syndrome, [4] is an inflammatory disease that affects the fascia, other connective tissues, surrounding muscles, blood vessels and nerves.
Signs and symptoms. The index and middle fingers are most commonly affected and may present with redness, swelling and pain. Pus or discharge may be present.
When Smith has an attack, her fingers become white, then yellow and eventually blue. Her toes and ears do the same. If she tries to grab something with her hand, she can’t feel it.
Sydenham's chorea, also known as rheumatic chorea, is a disorder characterized by rapid, uncoordinated jerking movements primarily affecting the face, hands and feet. Sydenham's chorea is an autoimmune disease that results from childhood infection with Group A beta-haemolytic Streptococcus.
Habits or conditions that keep the corners of the mouth moist might include chronic lip licking, thumb sucking (or sucking on other objects such as pens, pipes, lollipops), dental cleaning (e.g. flossing), chewing gum, hypersalivation, drooling and mouth breathing.