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Demodicosis
DermatologyAll SpeciesNew
Key Points
  • Demodicosis is a parasitic skin condition, caused by an over-proliferation of Demodex mites
    • Demodex sp. are normal skin commensals
  • It can be localised or generalised and juvenile- or adult-onset
  • Clinical signs include alopecia, erythema, crusting, scaling, comedones, and papules
    • Demodex rarely cause pruritus but it can develop with secondary pyoderma
  • Deep skin scrapes are best for diagnosis
  • Isoxazolines are now the first-line treatment due to their efficacy and safety, but macrocyclic lactones and amitraz are alternatives
Differential Diagnoses
  • Bacterial folliculitis / furunculosis
  • Dermatophytosis
  • Sarcoptic mange (S. scabiei)
  • Atopic dermatitis
Overview
Aetiology
Clinical Signs
Diagnosis
Treatment
Prevention
Resources
Overview

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Aetiology

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Clinical Signs

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Diagnosis

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Treatment

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Prevention

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Resources

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Educational content only. This factsheet is for general veterinary education and is not a substitute for professional veterinary advice, diagnosis, or treatment. Not for use in an emergency — contact a veterinarian or emergency service. Full disclaimer →