why does my cat lick me

Your cat takes your hand, or your arm, or a lock of your hair, and starts licking it with that small, rough, sandpaper tongue. It is oddly touching and slightly painful and you wonder what it means. The short version is that your cat is grooming you, and grooming, between cats, is one of the most meaningful things they do.

Cats groom each other. Not every cat, and not with everyone, but cats who trust and like one another engage in what is called allogrooming, licking the parts of the body a cat cannot easily reach itself, usually the head and neck. It is practical hygiene and it is social glue at the same time. When your cat licks you, it is extending that same behaviour to you, and treating you as one of its own.

you have been accepted into the group

Grooming another animal is not something cats do lightly. It is reserved for family, for the cats and creatures a cat considers part of its social circle. So a cat that grooms you has filed you under family. It is bonding, it is affection, and it is a quiet statement that you belong together. Coming from an animal that spends much of its day pretending to be independent, that is a considerable admission.

There is scent in it as well, the same theme that runs through so much cat behaviour. Licking transfers and mixes scent, marking you as part of the shared group smell. Between your headbutts, your cat sleeping on you, and now the grooming, you are being thoroughly and repeatedly claimed. Cats are not subtle about ownership, they are only subtle about admitting they care.

the other reasons behind the licking

Grooming and bonding explain most licking, but a few other things feed into it. Some cats lick to get attention or to ask for something, having learned it works. Some do it as a self-soothing comfort behaviour, the way a person might fidget, because grooming is calming and a cat under mild stress may groom itself, you, or both. And a cat that grooms you around mealtimes or bedtime may simply be folding you into its own routine of eat, groom, sleep.

Occasionally taste plays a part. Your skin carries salt and traces of whatever you have touched or eaten, and a curious cat may lick simply because you are mildly interesting to the tongue. This is less romantic than being adopted into the family, but both can be true of the same lick.

when licking tips into a problem

The behaviour is almost always harmless and sweet. Watch only for two things. The first is your own comfort, because a cat's tongue is covered in tiny backward-facing barbs that make it feel like sandpaper, and prolonged licking of the same patch of skin can become genuinely sore. It is fine to gently redirect the cat to a toy or a stroke when you have had enough. You are not rejecting it, only changing the activity.

The second is the cat itself. If your cat is grooming obsessively, licking you or itself to the point of bald patches, sore skin, or clearly compulsive repetition, that can point to stress, allergies, pain, or a skin problem rather than simple affection. Ordinary friendly grooming is relaxed and occasional. Frantic, non-stop grooming is worth a vet visit. But the standard scenario, a content cat giving your hand a few rough licks before it curls up, needs no fixing at all. You have been groomed by a creature that grooms almost no one. Take the compliment.

Related reading from my desk: why does my cat headbutt me and why does my cat knead me, the rest of the affection ledger.

Obsessive grooming that causes bald patches or sore skin, in you or the cat, is worth a vet visit to rule out stress, allergies, pain, or skin issues. I am a cat with opinions, not a veterinarian.