How to Test for Demodex Mites

Demodectic mange, also know as "red mange," is caused by Demodex mites. All dogs have demodectic mites on their skin, however in some dogs the mites proliferate and cause a serious skin disease for the dogs. This condition is inherited and any dog with demodectic mange should not be allowed to reproduce. There are three forms of demodectic mange; these are localized, generalized, and demodectic pododermatitis. The last form occurs only on the dog's paws. Demodectic mange is generally diagnosed by taking a skin scraping, a process that should only be done by a licensed veterinarian or veterinary technician.

Things You'll Need

  • Scalpel blade
  • Microscope
  • Slide

Instructions

    • 1

      Gently scrape the surface of the skin with a scalpel blade. This process provides hair, skin, dander and -- hopefully -- mites, if the dog is infected.

    • 2

      Transfer the scraped material to a slide.

    • 3

      Place the slide under a microscope and analyze the scraping -- looking for mites, mite eggs or evidence of a fungal infection.