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Hair Loss Caused by Mites (Canine Scabies), or Mange in Dogs
Sarcoptic mange is a highly contagious skin disease found in dogs, caused by the Sarcoptes scabiei mite. These mites will burrow through the skin causing intense itching and irritation. The scratching that results from mange is what causes the majority of the animal's hair to fall out. This is a treatable medical condition, but is highly contagious for other animals and humans. Pet owners are advised to keep the dog quarantined while it is being treated for mange.
The most common cause of mange in dogs is exposure to another infected animal, as the mites quickly move from animal to animal. Kennels, animal shelters, dog parks, groomers and veterinary clinics have a high exposure rate of mange due to the close proximity with animals that are infected. The exposure generally occurs about two to six weeks before the first symptoms of mange are displayed.
After ruling out food allergies, chiggers, and bacterial infections of the skin (folliculitis), your veterinarian will conduct a physicial inspection of your dog to identify the type of microorganism that may have embedded into its skin; in this case, mites.