What is Canine Demodicosis? Demodex spp. are cigar shaped microscopic parasitic mites that live within the hair follicles of all dogs. It is thought that the body’s. This update will start with a brief history and background on canine demodicosis followed by a brief review of the latest published insight into the demodex mites. Demodicosis is a common dermatosis in dogs and is now a more recognized problem in cats.

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Acaricidal treatment macrocyclic lactones decreases the antigenic load and reverses T-cell exhaustion, leading to a clinical cure. Cancel Case Report Assignment Are you sure you wish to cancel your assignment to report on this case — all inputted data will be lost!

An essential part of treating adult onset cases is to identify the underlying illness that triggered the problem. Clients also need to understand that if their dog has been diagnosed with adult-onset demodicosis but an underlying condition has not been found, an underlying disease could still be predisposing the dog to demodicosis.

This indicates that the owner is being compliant and the therapy is working. Generalised cases in young dogs can take many weeks or even months of treatment, but it is usually possible to control the disease with a good long term outlook.

Regularly scheduled recheck examinations and skin scrapings are needed to monitor demoodicosis to therapy. Itchiness and pain are commonly seen. Pododemodicosis is especially difficult to cure and carries a poor prognosis.

Canine Demodicosis – Skin irritating mites in dogs

Underlying causes include diabetes mellitus, hyperadrenocorticism either naturally occurring or iatrogenic due to glucocorticoid administrationneoplasia, treatment with immunosuppressive agents, hypothyroidism, heartworm disease, intestinal parasitism, and leishmaniasis.


A spatula or 10 scalpel blade can be used to collect the samples. The severity of clinical signs e. One year after a second negative skin-scraping result and no recurrence of disease, the patient can finally be declared cured.

The prognosis for adult onset generalised demodicosis is far more uncertain, as many demodicsois these dogs have an underlying systemic illness. If you have any questions or concerns, you should always visit or call your veterinarian — they are your best demoicosis to ensure the health and well-being of your pets.

Treatment should be continued for 4 weeks after the second negative skin-scraping result. The plugged follicles also cause large amounts demoddicosis scale to be present on the hairs demodicpsis.

Generalized demodicosis is a more serious disease. Although in recent years there have been significant advances in the management and understanding of this important and complex canine disease, more research in areas such as the aetiology of the genetic predisposition and the immune control of the mite populations is clearly needed. Generalised demodicosis can be a very severe disease.

Localised demodicosis in juvenile dogs presents as patches of hair loss and red inflamed skin.

Records were reviewed for signalment, disease history, potential underlying aetiologies, diagnosed concurrent diseases, medications and demodicosis treatment.

It is thought that the juvenile-onset generalized form develops as a result of an inherited immune dysfunction; therefore, owners of patients with this form of disease should be advised that their dogs should not be bred. Generalised disease in juvenile and adult dogs is a more serious disease, although there is no uniformly accepted way of defining the number of lesions needed to classify generalised disease.


Adverse effects of avermectins and milbemycins are rare and include mydriasis, hypersalivation, lethargy, ataxia, seizure, coma, and death. Rechecks and skin scrapings should be performed every 3 to vemodicosis months for the next year.

These cases should be closely monitored if no treatment is canlne. Although CGD is still a disease that is not easily treated, the prognosis for dogs with this disorder has dramatically improved in the past few years. The prognosis for localised disease in young dogs is very good, and most recover uneventfully from the disease. The ears can also be affected with this parasite, resulting in secondary infections. Metaflumizone plus amitraz spot-on Promeris for Dogs, Fort Dodge Animal Health is labeled to kill and control Demodex spp mites on dogs.

Many cases resolve spontaneously with little or demodicosiis treatment, though in some dogs it progresses to the generalized form. These dogs were not followed up after discontinuation of therapy. Nevertheless, milbemycin oxime is expensive, ivermectin caninf potentially more toxic, and only limited information is available on moxidectin.

Canine Demodicosis

Many patients present with circular areas of alopecia. However in some instances, mite populations become huge resulting in inflammation and clinical disease.

Generalised cases in young dogs and those in adult dogs require intensive treatment.