Scratch Marks | Signs - MedSchool
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Scratch Marks

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Overview

    • Look For

    • Scratch marks over the skin of the face, arms, chest or abdomen.
    • Significance

    • An indicator that the patient has been pruritic; sometimes a sign of myeloproliferative disorder.
    • Causes of Pruritis

    • Obstructive jaundice (bile acid deposition)
    • Chronic kidney disease (urea deposition)
    • Dermatoses - dry skin, atopic dermatitis, psoriasis, lichen planus, ichthyosis
    • Infection - herpes zoster, scabies, fungal infections
    • Endocrine - hypothyroidism / hyperthyroidism
    • Myeloproliferative disorders
    • Pregnancy
    • Neuropathic itch
    • Psychogenic itch
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