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Misophonia (or selective sound sensitivity syndrome, sound-rage) is a disorder of decreased tolerance to specific sounds or their associated stimuli, or cues.These cues, known as "triggers", are experienced as unpleasant or distressing and tend to evoke strong negative emotional, physiological, and behavioral responses that are not seen in most other people. [4]
Formication is the sensation resembling that of small insects crawling on (or under) the skin, in the absence of actual insects. It is one specific form of a set of sensations known as paresthesias , which also include the more common prickling, tingling sensation known as pins and needles.
Trichophagia is estimated to have a prevalence of 0.6% in the general population with the most restrictive definition of hair ingestion, but looser definitions which are inclusive of sucking and chewing without swallowing, can be as high as 3.2%. [5]
Olfactory reference syndrome (ORS) is a psychiatric condition in which there is a persistent false belief and preoccupation with the idea of emitting abnormal body odors which the patient thinks are foul and offensive to other individuals.
Tardive tourettism is a tic disorder featuring the same symptoms as Tourette syndrome. The two disorders are extremely close in nature and often can only be differentiated by the details of their respective onsets. Tardive myoclonus, a rare disorder, presents as brief jerks of muscles in the face, neck, trunk, and extremities. [10]
[10] [11] [12] The cause of leukoplakia is unknown. [6] Risk factors for formation inside the mouth include smoking, chewing tobacco, excessive alcohol, and use of betel nuts. [4] [7] One specific type is common in HIV/AIDS. [13] It is a precancerous lesion, a tissue alteration in which cancer is more likely to develop. [4]
Pinworm infection (threadworm infection in the UK), also known as enterobiasis, is a human parasitic disease caused by the pinworm, Enterobius vermicularis. [3] The most common symptom is pruritus ani, or itching in the anal area. [1]
Lip licker's dermatitis which is a subtype of irritant contact cheilitis is caused by an exogenous factor rather than an endogenous one. [10] Irritant contact cheilitis can be separated into different reaction types, so it is an umbrella term and further evaluations are usually needed to properly classify the presenting condition.