Heyletiosis in a dog: symptoms and treatment

Cheyletiosis is a parasitic disease that is caused by specific ticks of Cheyletiella. Parasites live on the surface of the skin, causing discomfort in the form of itching and disrupting the structure of the coat. The disease is contagious, that is, it can be quickly transmitted to other individuals. Treatment in dogs is recommended after a consultation with a veterinarian, since the symptoms are similar to other skin diseases.

Development mechanism

In dogs, cheyletiosis is caused by ticks Cheyletiella Yasguri. There are several more varieties of this tick that parasitize on other animals:

  • Cheyletiella Blakei infects cats;
  • Cheyletiella Parasitovorax lives on the skin of mainly rabbits, but is sometimes found in cats.

Therefore, canine cheyletiosis with Cheyletiella Yasguri is almost never transmitted to cats and other types of pets. Cheyletiella has a whitish or light yellow body with sparse hair. Its dimensions depend on the stage of development and range from 0.2 to 0.6 mm. Ticks move on animal hair. Therefore, the disease also has the name "Wandering Dandruff."

The entire life cycle of parasites occurs on the pet. The female lays eggs and attaches them to the hairs with the help of an adhesive secret. Unlike nits, Kheletiyel eggs are smaller and are not so firmly attached to the coat.

Ticks live on the surface of the skin. They make bites with their chelicera and feed on tissue fluid and lymph. Outside the host, larvae, immature individuals, and males can live a maximum of 48 hours. Females can continue their activity up to 14 days.

Cheyletiosis can affect a person, but it will have a slightly different characteristic. May cause discomfort (itching, redness, local flaking). The severity of symptoms will depend on the individual reaction of the person. Infection does not require specific treatment and manifestations self-destruct after a while.

The reasons

Heyletiosis is transmitted from individual to individual. Most often, it develops in conditions with insufficient compliance with sanitary standards and a large concentration of animals: nurseries, pet stores, animal shelters, etc.

A healthy dog ​​can become infected after contact with an affected dog. A dog can become infected by lying on the litter of a sick animal or visiting the same room with it. This disease does not choose the breed or age of the animal, however, most often it can be found in puppies up to 8 weeks of age. Once on the body of a new host, adult females begin to intensively lay their eggs. The development of the individual lasts 3-5 weeks, and the adult heletiel lives about two weeks.

Heyletiosis is widespread around the globe as a result of a significant increase in travel. Dogs can move with the owners by any means of transport. In this case, other animals in different countries and even on different continents become susceptible to the disease.


Cheyletiosis in dogs is manifested by skin disorders. Most often, the disease develops on the neck and back. The first sign of infection will be a significant increase in dandruff. On dark wool, if you look closely, you can note the movement of ticks.

Heyletiosis has several stages of development, which can conditionally be divided into the following stages:

  1. The dog increases the amount of dandruff.
  2. Itching appears. It arises as a result of constant piercing of the skin of an animal by chelicerae. Itching is very worrying and will only increase, as parasites actively develop on the body.
  3. The result of the activity of the tick provokes the appearance of scales - dead pieces of the skin.
  4. There is an increase in sebum secretion, which further provokes the formation of flakes.
  5. There is a clear reddening of the tissues, alopecia (hair loss).
  6. Dust and dirt adhere to dead tissue. The dog constantly combes the skin where the infection can get, which greatly complicates the condition of the animal.

Without proper treatment, the affected areas of the skin can be covered with a continuous film of dead skin. The animal experiences significant discomfort, anxiety, and may refuse to eat.

In advanced cases, the veterinarian may not immediately understand what caused the severe damage to the skin. Therefore, when the first signs appear, you should not postpone the visit to the doctor.


The detection of the disease is performed on the basis of the clinical picture and scraping from the affected area. Materials for research can be taken in the following ways:

  • with adhesive tape, gluing it to the area with dandruff;
  • using a stiff brush on which the scales will remain;
  • using a scalpel, which perform the sampling of the upper layer of the skin;
  • having pulled out several hairs on which the parasite eggs will be searched.

The study is performed under a microscope and allows you to most accurately make a diagnosis.


To get rid of helethiosis, it is necessary to treat all animals that are in the house or have constant contact with the affected dog. Also, the processing of personal pet items - bedding, toys, booths will be required. It should be borne in mind that females of Cheyletiella can live up to 14 days outside the host's body, therefore, they can constantly cause relapses. To eliminate this situation, it will be necessary to process the animal several times to stop the development cycle of parasites.

Treatment is carried out with anti-mite drugs, which are applied to the skin of the animal or subcutaneously. They can be used in the form of shampoos, tablets, injections or drops.

A good result is shown by the drug Ivermectin. This is one of the types of neurotoxins with acaricidal and insecticidal effects. Its dosage is calculated based on the weight of the animal. The drug is administered subcutaneously, with a repeat of the procedure after 10 days.

Also, in the fight against Cheyletiella, Fipronil spray, which is a broad-spectrum insecticide, is effective. Additionally, preparations based on selenium and sulfur can be prescribed.

Skin lesions in a person go away by themselves after eliminating the source of infection, that is, curing the pet.

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