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Allergies in dogs: what are the most common triggers?

Allergies in dogs can have very different causes. However, there are three triggers that very often lead to allergic reactions and lead to symptoms such as itching or gastrointestinal problems in many dogs. Allergies in dogs can have a variety of triggers - Image: Shutterstock / Burry van den Brink

Constant scratching, biting and rubbing can indicate fleas in dogs. But sometimes the trigger is also an allergy. Certain dog breeds tend to always develop the same allergies: The Irish Red Setter, for example, has to grapple with grain intolerance particularly often. Basically, there are three allergies that occur particularly often in dogs.

Mites: Most common cause of allergies

House dust and food mites in particular trigger strong allergic reactions in dogs. They lead to persistent itching, redness and, as a result, open skin areas on the entire body. In technical jargon, the veterinarian calls this type of allergic reaction an atopy or atopic dermatitis. In addition to mites, mold or pollen can also trigger such atopy. This type of allergy usually develops in dogs only after the first year of life.

Dog intolerance to feed

Feed allergy or feed intolerance is also very common in dogs. Just like an allergic reaction to mites, it causes severe itching, but there is also vomiting and diarrhea. Most four-legged friends develop food intolerance in the first months of life. The most common trigger is beef, followed by cow's milk, wheat, and chicken.

Flea allergy: if the itching does not stop

The third most common allergy in dogs is flea bite allergy. In this case, the trigger is not the flea itself, but the saliva transferred with the bite. In contrast to the other allergies mentioned, the rash in this case concentrates primarily on the back area as well as on the croup - the transition area between the lumbar spine and the vertebrae.

Caution toxic! Food that dogs should not eat

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You may also be interested in these dog health articles:

Flea Allergy: How You Can Help Your Dog

Contact allergy in dogs: you can do that

How to recognize a food mite allergy

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