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Pruritus ani is the irritation of the skin at the exit of the rectum, known as the anus, causing the desire to scratch. [1] The intensity of anal itching increases from moisture, [ 2 ] pressure, and rubbing caused by clothing and sitting.
Various drugs can also induce pruritus which can manifest with or without a skin rash and can happen immediately or even months after the drug has been used by the patient. Neurological disorders such as postherpetic neuralgia, brachioradial pruritus and notalgia paraesthetica can also lead to senile pruritus with burning, stinging, scratching ...
Patients are usually older persons. [4] The correlation of notalgia paresthetica localization with corresponding degenerative changes in the spine suggests that spinal nerve impingement may be a contributing cause. According to Plete and Massey, "The posterior rami of spinal nerves arising in T2 through T6 are unique in that they pursue a right ...
An itch (also known as pruritus) is a sensation that causes a strong desire or reflex to scratch. [1] Itches have resisted many attempts to be classified as any one type of sensory experience. Itches have many similarities to pain , and while both are unpleasant sensory experiences, their behavioral response patterns are different.
Prurigo is a reactive cutaneous disorder characterized by prurigo papules or nodules.Isolated papules that itch intensely are called prurigo papules. Scratching can cause erosions to form at the top, although unlike eczematous papules, these typically don't show any noticeable phenotypic alterations.
Antipruritics, abirritants, [1] or anti-itch drugs, are medications that inhibit itching (Latin: pruritus).Itching is often associated with sunburns, allergic reactions, eczema, psoriasis, chickenpox, fungal infections, insect bites and stings like those from mosquitoes, fleas, mites, and contact dermatitis and urticaria caused by plants such as poison ivy (urushiol-induced contact dermatitis ...
No definitive medical test is known for aquagenic pruritus. Rather, diagnosis is made by excluding all other possible causes of the patient's itching, including polycythemia vera. Since pruritus is a symptom of many serious diseases, it is important to rule out other causes before making a final diagnosis. [11]
Xerosis is a contributing factor to pruritus and is present in 50–85% of patients with uremic pruritus. [16] Many studies have shown that emollients such as glycerol and paraffin, [ 17 ] physiological lipids, [ 18 ] 10% urea and dexpanthenol , [ 19 ] and baby oil [ 20 ] can reduce xerosis and pruritus in patients with uremic pruritus.
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