Demodicosis
Auch bekannt als: Canine Demodicosis, Demodectic Mange
Kurz gesagt
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. Uebervermehrung von Demodex-Milben in Haarfollikeln: Haarausfall und Hautreizung; Diagnose und Therapie oft bis 6 Monate.
Demodex lebt normal im Follikel; Krankheit bei Ueberpopulation.
Was ist das?
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).
Ursachen und Risikofaktoren
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.
Anzeichen
- Alopecia (cardinal)
- Scaling, erythema (common)
- Secondary pyoderma; pododemodicosis (occasional)
- Fever, anorexia if deep infection (rare; emergency)
Fleckiger Haarausfall an Gesicht und Augen ist klassisch.
Diagnose
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).
Tiefe Hautgeschabsel sind Goldstandard.
Behandlung
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.
Prognose
Localized juvenile: excellent. Generalized juvenile: good with consistent therapy. Adult-onset: depends on underlying disease.
Vorbeugung
Support immunity, parasite control, minimize stress, cautious immunosuppressants. Do not breed dogs with generalized demodicosis.
Wann den Tierarzt rufen
Any patchy alopecia or red/scaly skin. Emergency: fever, anorexia, severe depression, deep oozing foot lesions.
Quellen
- Small Animal Dermatology: A Color Atlas and Therapeutic Guide, Page 32, 132, 135.
My highlights & notes
Anzeichen & Symptome
Rassen mit höherem Risiko
Diagnose
- Deep skin scrapeGoldstandard
- Hair-plucks
- Skin biopsy
Behandlungsansätze
Behandlungen müssen von einem approbierten Tierarzt verordnet werden. Konkrete Dosierungen werden absichtlich nicht angezeigt.
Häufige Fragen
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?
Behandlungen müssen von einem approbierten Tierarzt verordnet werden. Konkrete Dosierungen werden absichtlich nicht angezeigt.
Quellen
- 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
Dieser Artikel dient der allgemeinen Information und ersetzt keinen tierärztlichen Rat. Bei Krankheit bitte einen Tierarzt aufsuchen.
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