Why Does My Dog Keep Licking Their Paws?

Paw licking is one of the most common reasons dog owners contact their vet. A dog that occasionally licks their paws after a walk is completely normal — they're cleaning themselves, just as cats do. But a dog that licks persistently, to the point of redness, hair loss, or broken skin, is telling you something is wrong.

Here's how to read the signs and what to do about it.

Is Paw Licking Normal?

Occasional paw licking — particularly after walks, meals, or during grooming — is perfectly normal dog behaviour. It becomes a problem when:

• It happens repeatedly throughout the day
• It focuses obsessively on one specific paw or area
• The skin between the toes becomes red, swollen, or raw
• You notice a yeasty or corn chip smell (a sign of yeast overgrowth)
• The fur on the paws is stained brown or rust-coloured (from saliva)
• Your dog wakes themselves up at night to lick

The Most Common Causes of Paw Licking

1. Environmental Allergies

The most common cause of chronic paw licking in dogs is environmental allergies — also known as atopic dermatitis. Dogs with environmental allergies react to pollen, grass, dust mites, or mould, and the paws are one of the primary contact points with allergens when walking outdoors.

Unlike humans who get hay fever symptoms in their airways, dogs tend to react through their skin — particularly the paws, ears, groin, and armpits. Seasonal patterns (worse in spring and summer) strongly suggest environmental allergies.

2. Food Allergies or Intolerances

Food allergies are the second most common cause. The most frequent canine food allergens are beef, chicken, dairy, wheat, and egg. Unlike environmental allergies, food allergy symptoms tend to be year-round rather than seasonal.

If you suspect food allergies, an elimination diet (12 weeks on a novel protein or hydrolysed diet) is the gold standard diagnostic approach. This needs to be done properly — even small exposures to the allergen can invalidate the trial.

3. Contact Irritants

Road salt and de-icers in winter, fertilisers and pesticides on grass, cleaning products on floors, and even certain paving materials can cause contact irritation on paw pads. If licking started after a change in walking route or around the time you changed floor cleaning products, contact irritation is worth investigating.

Rinsing your dog's paws with clean water after walks is one of the simplest and most effective preventative measures.

4. Yeast Infection

Warm, moist environments between the toes are ideal for yeast (Malassezia) overgrowth. Dogs with allergies are particularly prone because persistent licking creates the warm, moist conditions yeast thrives in — creating a cycle that's hard to break without treating both the underlying allergy and the secondary infection.

Signs of yeast infection include the characteristic corn chip or musty smell, brown staining of the fur, and redness between the toes. A vet can confirm with a skin swab.

5. Interdigital Cysts

Interdigital cysts — also called interdigital furuncles — are painful, inflamed nodules that develop between the toes. They're common in short-coated breeds with wide paws (Bulldogs, Labradors, Boxers) and often require veterinary treatment. A dog with an interdigital cyst will typically focus licking on one specific spot.

6. Injury or Foreign Body

A thorn, grass seed, splinter, or small cut can cause localised licking focused on one paw. Check between the toes and on the paw pads carefully, particularly after walks through long grass. Grass seeds in particular can burrow through skin rapidly and require prompt removal.

7. Pain or Arthritis

Dogs sometimes lick at paws or legs as a response to pain elsewhere — joint pain from arthritis can manifest as licking at the wrist (carpus) or hock joints rather than the joint itself. If your dog is older or a large breed, joint pain is worth considering.

8. Anxiety or Boredom

Some dogs develop compulsive paw licking as a self-soothing behaviour in response to anxiety, stress, or under-stimulation. This is typically a diagnosis of exclusion — rule out physical causes first. Signs that anxiety may be driving the licking include doing it primarily when alone, during stressful situations, or in dogs with known anxiety issues.

What to Do

In the short term

• Rinse paws with clean water after every walk
• Check carefully between toes for foreign bodies, redness, or swelling
• Use a buster collar if licking is causing broken skin
• Keep a log of when licking happens, what time of year, and whether it worsens after specific walks or foods

See your vet if

• The skin is broken, bleeding, or showing signs of infection
• Licking has persisted for more than 2 weeks
• You can see a swelling or nodule between the toes
• Your dog is losing sleep or the licking is significantly affecting quality of life

Can Supplements Help?

For dogs with allergy-driven or inflammation-driven paw licking, several supplements can provide meaningful support:

• Omega-3 fatty acids — reduce skin inflammation and support the skin barrier function, which is often compromised in allergic dogs
• Probiotics — emerging research links gut microbiome diversity to reduced allergic reactivity. A healthy gut flora helps regulate immune responses that drive allergy symptoms. Our UK9 Probiotics supports gut health with a multi-strain Lactobacillus and Bifidobacterium blend.
• Functional mushrooms and turmeric — the anti-inflammatory and immune-modulating properties of functional mushrooms and curcumin may help reduce the inflammatory response that drives allergy symptoms. Our UK9 Vitality Boost combines five functional mushrooms with turmeric for daily immune and anti-inflammatory support.

Supplements work best as part of a broader management approach — identifying and reducing allergen exposure is always the most important step.

Frequently Asked Questions

Why do dogs lick their paws at night?

Night-time licking is often driven by allergies — specifically, the itch-scratch cycle intensifies when there are fewer distractions. Environmental allergens like dust mites are also highest in bedding environments. If your dog wakes to lick their paws, allergy investigation is a priority.

Can I put anything on my dog's paws to stop the licking?

Paw balm can soothe irritated paw pads and provide a mild barrier, but it won't address the underlying cause. Some dogs lick more when a product is applied. Treat the cause rather than masking the symptom.

Is brown staining on paws serious?

Brown or rust-coloured staining is caused by porphyrins in saliva and indicates persistent licking over weeks or months. It's not directly harmful but confirms chronic licking that needs investigating — the underlying cause is the concern.

Could my dog's food be causing paw licking?

Yes — food allergies are the second most common cause after environmental allergies. If symptoms are year-round (not seasonal), food allergy is more likely. An elimination diet trial under vet guidance is the only reliable way to test this.

How do I stop my dog from licking their paws without a cone?

Inflatable collars and soft recovery collars are more comfortable alternatives to hard plastic cones. Paw bandaging (using veterinary bandage) can protect the area during treatment. Address the underlying cause as quickly as possible — physical barriers are a short-term measure, not a solution.