The reason why cats often smell people’s noses is because cats use their noses to detect their surrounding environment. Cats’ noses have a keen sense of smell, and they can distinguish different objects, animals, humans, and situations by smelling them. Therefore, cats will often use their noses to smell things around them, including human noses.
Also, cats may smell their noses to communicate. Cats have sweat glands on their noses that secrete sweat to emit scent. When cats sniff the noses of other cats or people, they may be collecting the other person's scent information to understand the other person's identity, emotions and other information. Overall, sniffing is a common behavior for cats to detect their surroundings and communicate information. If you notice your cat sniffing your nose a lot, don't worry, this is usually normal cat behavior.
