Why Does My Dog Lick So Much? People, Paws, Floors and When to Worry

Dogs lick people mainly to greet them and get attention, and they lick themselves to keep clean. Both are normal. What is worth paying attention to is licking that has become constant, is focused on one area, or is aimed at floors, furniture or thin air, because allergies, pain, nausea and stress all tend to show up as licking.

The pattern tells you a lot. Here is how to read it.

Licking You

Blue Cross traces this back to puppyhood. Mothers lick their puppies to clean and comfort them, and puppies lick their mother's mouth to ask for food. Licking becomes a greeting, and it sticks around in adulthood if it gets a reaction. If you laugh, talk or stroke your dog when they lick you, you are rewarding it. Your skin also tastes salty, especially after exercise.

None of that is a problem. If you would rather not be licked, stay calm and turn away when it starts, then give your dog attention once all four paws are on the floor and their tongue is in. A dog who licks people frantically when they are being approached, handled or told off may be feeling uneasy rather than affectionate. Look at the rest of the body: a lowered head, ears back and a tucked tail tell you more than the tongue.

Blue Cross also points out that dogs' mouths carry harmful bacteria. It is a myth that dog saliva is antiseptic, so do not let your dog lick an open wound.

Licking Their Paws

A quick clean after a walk or a meal is normal. Licking that goes on for minutes at a time, wakes you at night, or leaves the fur stained is not. PDSA lists saliva staining on the coat as a sign of skin allergy.

The quickest clue is how many paws, which PDSA's vets also use to narrow it down.

One paw, suddenly. Think of something local: a grass seed between the toes (common in summer, and PDSA explains the signs), a cut, a split nail, a sting, or a sore joint in that leg. Look between the toes and pads in good light. If your dog is also limping, see our guide to why dogs limp.

Several paws, on and off. Points towards something affecting the whole dog:

• Skin allergy (atopic dermatitis). PDSA describes skin allergies as one of the most common causes of itchy skin in dogs, often with red skin, fur loss and repeated ear or skin infections. West Highland white terriers, bichon frises and shar peis are among the breeds more prone to it. It is managed rather than cured, with flare-ups, but most dogs live comfortably once treatment is right.
• Parasites. Fleas, mange mites and, in late summer and autumn, harvest mites, which show up as tiny red dots, often between the toes.
• Contact irritation. If the licking starts after walks, PDSA suggests rinsing paws in cool water when you get home.

Stiff or sore joints. PDSA notes that dogs may lick a sore joint the way we rub one. Vets Now includes constant paw licking in its list of signs that a dog is in pain.

Boredom and stress. Licking can become a habit that comforts a bored or anxious dog, and PDSA notes it can carry on even after the original itch has gone. If your dog mostly licks when left alone, our guide to separation anxiety is a good next step.

Licking Floors, Furniture or the Air

This is the one owners most often put down to a quirk, and it deserves more attention.

In a 2012 study, Bécuwe-Bonnet and colleagues gave full medical workups, including endoscopy, to 19 dogs referred for excessive licking of surfaces. Fourteen of them had a gut problem, including inflammation of the gut lining, slow stomach emptying, pancreatitis, a foreign body in the stomach and giardia. Once the gut problem was treated, the licking improved in 10 of 17 dogs followed up and stopped completely in 9.

It is a small study, but the message is clear: a dog obsessively licking the floor, the sofa or the walls may feel sick.

The same goes for lip licking. PDSA lists lip licking, repeated swallowing, drooling, restlessness and refusing food as the usual signs of nausea. A dog who licks their lips once when a stranger leans over them is probably uneasy. A dog who is lip licking, gulping and ignoring breakfast probably feels sick.

Licking One Spot Raw: Lick Granuloma

Some dogs lick the same patch of skin until it becomes a raw, thickened, often shiny sore. This is a lick granuloma, also called acral lick dermatitis. VCA says it is most often on the lower front leg, around the wrist, and is most common in medium and large breeds such as Labradors, golden retrievers, Dobermanns, Great Danes and boxers.

The licking causes damage, the damage itches and gets infected, and the dog licks more. It can start with allergy, joint pain, a sting or anxiety, and usually needs several things treated at once: the infection, the inflammation, whatever started it and sometimes the dog's anxiety. These cases can take a long time to settle, so the earlier a vet sees one, the better.

Normal, or See a Vet?

What you see	What it usually means
Licks your face or hands in greeting	Normal
Quick paw clean after walks or meals	Normal
Licks one paw suddenly and keeps at it	Something in or on that paw. Check it, then vet if it continues
Licks several paws, on and off for weeks	Often allergy or parasites. Book an appointment
Saliva-stained paws	Long-term licking. Book an appointment
Licks floors, furniture or air obsessively	Possible gut problem. Book an appointment
Lip licking with drooling or not eating	Nausea. See a vet if it lasts or comes with vomiting
A raw or weeping patch that will not heal	Possible lick granuloma. See a vet

See a vet today if:

• The licking comes with vomiting, drooling, a swollen belly or retching without bringing anything up.
• Your dog may have licked something toxic, such as antifreeze, a chemical spill or a product on their fur.
• There is a wound, swelling or bleeding they will not leave alone.
• Your dog seems in pain, will not put weight on a leg, or is not themselves.

Out of hours, find your nearest emergency clinic through Vets Now. Our dog first aid guide covers what to do on the way.

What Helps at Home

• Find the cause first. A cone or sock stops the damage but not the itch, and itch that is not treated tends to come back.
• Keep flea and mite treatment up to date, with a product from your vet.
• Rinse and dry paws after walks if the licking is walk-related.
• Give your dog more to do. Sniffing walks, chews and food puzzles help dogs who lick out of boredom.
• For persistent anxiety-driven licking, PDSA recommends a behaviourist accredited by the APBC or ABTC.

Allergies in particular tend to need ongoing treatment. If your dog is not insured yet, it is worth reading how lifetime and time-limited policies differ in our pet insurance guide before a diagnosis goes on their record.

Floofers is not a veterinary practice and nothing here is a diagnosis. If your dog's licking is constant, has broken the skin, or comes with signs of illness, ring your vet.