Why do I sneeze when near a cat? - briefly
Sneezing near a cat is typically caused by an allergic reaction to proteins found in cat dander, saliva, or urine, which trigger the immune system to respond.
Why do I sneeze when near a cat? - in detail
Sneezing when near a cat is often a sign of an allergic reaction triggered by exposure to allergens produced by the animal. Cats secrete proteins, primarily Fel d 1, found in their saliva, skin, and sebaceous glands. When cats groom themselves, these proteins are transferred to their fur and can become airborne as dander—tiny flakes of skin shed by the animal. When inhaled or when these particles come into contact with the nasal passages or eyes of a sensitive individual, the immune system mistakenly identifies these proteins as harmful invaders. This triggers the release of histamine and other chemicals, leading to symptoms such as sneezing, nasal congestion, itchy eyes, and a runny nose. Sneezing is the body’s reflexive attempt to expel these allergens and protect the respiratory system. The severity of the reaction can vary depending on the individual’s sensitivity, the amount of allergen present, and the duration of exposure. Some people may experience mild sneezing, while others may develop more severe allergic reactions. Regular cleaning, air filtration, and minimizing direct contact with cats can help reduce exposure to these allergens and alleviate symptoms.