Demodicosis
Nota anche come: Canine Demodicosis, Demodectic Mange
In breve
Demodicosis, also known as demodectic mange, is a common canine skin disease caused by an overpopulation of microscopic Demodex mites. Learn how to recognize the signs—such as hair loss and skin redness—how veterinarians diagnose it using deep skin scrapes, and the treatment steps needed to clear the infection.
TL;DR. Sovrappopolazione di acari Demodex nei follicoli: alopecia e irritazione; diagnosi e terapia a lungo termine (fino a 6 mesi).
Demodex e un residente normale del follicolo; la malattia compare con sovrappopolazione.
Cos'è?
Overgrowth of normal Demodex mites in hair follicles (demodectic mange). Not highly contagious adult-to-adult. Classify localized vs generalized; juvenile-onset vs adult-onset (often secondary to immune suppression).
Cause e fattori di rischio
Immune control fails: stress, endoparasites, poor nutrition, immunosuppressive drugs, underlying disease (e.g. Cushing, hypothyroidism, cancer). Higher risk: Rat Terrier, English Bulldog, Chinese Shar-Pei.
Segni da osservare
- Alopecia (cardinal)
- Scaling, erythema (common)
- Secondary pyoderma; pododemodicosis (occasional)
- Fever, anorexia if deep infection (rare; emergency)
Alopecia a chiazze su faccia e occhi e un segno classico.
Come diagnosticano i veterinari
Deep skin scrape (gold standard: pinch then scrape to capillary bleed). Hair plucks near eyes/paws. Biopsy if scrapes negative (esp. thick-skinned breeds like Shar-Pei).
Il raschiato cutaneo profondo e lo standard di riferimento.
Opzioni di trattamento
Localized juvenile: often self-limiting; treat predisposing factors. Generalized: long course (up to 6 months). Amitraz dips or Ivermectin (caution MDR1 herding breeds). Continue past clinical cure until 2 consecutive negative scrapes weeks apart.
Prognosi
Localized juvenile: excellent. Generalized juvenile: good with consistent therapy. Adult-onset: depends on underlying disease.
Prevenzione
Support immunity, parasite control, minimize stress, cautious immunosuppressants. Do not breed dogs with generalized demodicosis.
Quando chiamare il veterinario
Any patchy alopecia or red/scaly skin. Emergency: fever, anorexia, severe depression, deep oozing foot lesions.
Fonti
- Small Animal Dermatology: A Color Atlas and Therapeutic Guide, Page 32, 132, 135.
My highlights & notes
Segni e sintomi
Razze a rischio più alto
Come si diagnostica
- Deep skin scrapeGold standard
- Hair-plucks
- Skin biopsy
Approcci di trattamento
Il trattamento deve essere prescritto da un veterinario abilitato in base al vostro animale. Le dosi specifiche non sono mostrate di proposito.
Domande frequenti
What is Demodicosis?
Demodicosis, also known as demodectic mange, is a common canine skin disease caused by an overpopulation of microscopic Demodex mites. Learn how to recognize the signs—such as hair loss and skin redness—how veterinarians diagnose it using deep skin scrapes, and the treatment steps needed to clear the infection.
What are the symptoms of Demodicosis?
Hair loss、Skin redness、Scaling、Comedones、Greasy seborrhea、Darkening of the skin、Lichenification、Papules
How is Demodicosis diagnosed?
Deep skin scrape、Hair-plucks、Skin biopsy
How is Demodicosis treated?
Il trattamento deve essere prescritto da un veterinario abilitato in base al vostro animale. Le dosi specifiche non sono mostrate di proposito.
Fonti
- 皮膚病 教科書點子書 Small-Animal-Dermatology-A-Color-Atlas-and-Therapeutic-Guide · p. 135
- 皮膚病 教科書點子書 Small-Animal-Dermatology-A-Color-Atlas-and-Therapeutic-Guide · p. 135
- 皮膚病 教科書點子書 Small-Animal-Dermatology-A-Color-Atlas-and-Therapeutic-Guide · p. 132
- 皮膚病 教科書點子書 Small-Animal-Dermatology-A-Color-Atlas-and-Therapeutic-Guide · p. 32
Questo articolo è informativo e non sostituisce il parere veterinario. Se l’animale sta male, consultate un veterinario.
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