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  • 8 Surprising Facts About Pet Allergies

    Why your furry friends can make allergy symptoms so difficult to manage.

    Surprising pet allergy facts

    In the United States, as many as 30% of people have allergic reactions to cats and dogs. Are you one of them? Here are eight facts about pet allergies that might surprise you:

    • pet stats and facts.

    • 1. You don’t have to have a pet to deal with animal allergies.

      The American Pet Products Association says that 67% of U.S. households have a pet.¹ That’s 84.9 million homes—and, for allergy sufferers, a whole lot of fur, fluff and feathers. But even pet-free homes harbor irritants: More than 90% of all U.S. residences test positive for animal allergens, regardless of pet presence.² That’s because pet allergens are easily spread through shedding hair or fur, and are hard to get rid of once they settle in.

    • 2. Cat allergies are more common than dog allergies.

      In fact, cat allergies are about twice as common as dog allergies.³

      3. Pet hair isn’t what causes allergies—the problem is protein.

      Allergy sufferers react specifically to the proteins contained in pet saliva, urine and dander (dead skin cells) that disperse as our beloved family members shed. Pet hair can also trap mold, pollen and other outdoor allergens, doubling the trouble.

      4. Your pet may be allergic to humans.

      Human dander can actually cause allergic rashes or respiratory reactions in animals, the same way theirs can trigger a reaction in people with allergies.

    • There’s no such thing as hypoallergenic pets.

    • 5. Pet allergens follow you around like a lost puppy.

      Pet allergens cling to walls, furniture and clothing, and can hang in the air for months (and throughout multiple washes) even after a pet is gone.

    • 6. There’s no such thing as hypoallergenic pets.

      A truly non-allergenic breed of dog or cat doesn’t exist. (Nope, not even the hairless varieties.) Allergic dander in cats and dogs isn’t a function of length or texture of fur.

      7. All cat dander is not created equal.

      Cat allergens are “stickier” than just about any other type of allergen. And as felines go, male cats produce more of the allergen protein that humans react to (Fel d1) than female cats do.

      8. Kids who live with multiple pets from an early age may have a leg up on those who don’t.

      According to a study in the Journal of the American Medical Association,⁴ children raised in a house with two or more pets during their first year of life may be less likely than children raised in critter-free dwellings to develop pet allergies.


      1. American Pet Products Association

      2. American College of Allergy, Asthma & Immunology

      3. Asthma and Allergy Foundation of America

      4. JAMA

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