Hyperkeratosis in Dogs: Causes, Care and Treatment

If you’ve noticed your dog’s paw pads or nose looking unusually rough, thick, or crusty, you might be dealing with hyperkeratosis in dogs. It’s a surprisingly common condition that can look quite alarming but is usually very manageable once you understand what’s going on.

This guide covers everything you need to know, what causes it, which breeds are most prone, how to treat it at home, and when it’s time to see the vet.

What Is Hyperkeratosis in Dogs?

Keratin is a tough, fibrous protein that forms the outer layer of skin, hair, and nails, in both dogs and humans. It’s the same protein that makes up your fingernails. In a healthy dog, keratin production is balanced: old skin cells are shed and replaced at a steady rate.

With hyperkeratosis, the body produces more keratin than it can shed. The excess builds up on the surface, creating thick, rough, sometimes horn-like growths. It most commonly appears on:

• Paw pads: the most common location. The pads develop a dry, cracked, crusty appearance, sometimes with hard protrusions that look like extra growths.
• Nose (nasal planum): the nose leather becomes dry, rough, and may crack or peel.

In mild cases, it’s mostly a cosmetic issue. But when the excess keratin builds up significantly, it can crack and create fissures that are painful and prone to infection. That’s why ongoing management matters.

One thing that reassures a lot of owners: because hyperkeratosis is the skin overproducing keratin rather than an infection, it isn’t contagious, your other dogs and your family can’t catch it. (A few uncommon underlying causes are separate diseases in their own right, which is one more reason to get a sudden or early case checked, but the thickened skin itself doesn’t spread.)

If your dog’s problem is mainly on the nose, our focused guides to nasal hyperkeratosis and a crusty dog nose go deeper on that; for sore, itchy pads, see natural remedies for itchy paws; and if it’s simply a dry nose rather than thickened crust, that’s usually a much smaller worry.

What Causes Hyperkeratosis?

There are several potential causes, and your vet can help determine which applies to your dog:

Idiopathic (no known cause): The most common type. The body simply overproduces keratin without any identifiable trigger. This is sometimes called “hairy paw” due to the feathery or horn-like appearance of the excess growth.

Hereditary/breed-related: Some breeds are genetically predisposed to hyperkeratosis. It may appear in puppyhood or develop as the dog ages.

Age-related: Older dogs commonly develop mild hyperkeratosis as skin cell turnover slows and keratin accumulates. This is often considered a normal part of ageing.

Underlying medical conditions:

• Canine distemper: dogs that have recovered from distemper sometimes develop “hard pad” disease, a form of hyperkeratosis
• Leishmaniasis: a parasitic disease that can cause nasal hyperkeratosis
• Autoimmune conditions: pemphigus and lupus can trigger excess keratin production
• Zinc deficiency: rare but can cause skin thickening and crusting

Which Breeds Are Prone to Hyperkeratosis?

While any dog can develop hyperkeratosis, certain breeds are more frequently affected:

• Labrador Retrievers: one of the most commonly affected breeds
• Golden Retrievers
• Irish Terriers: can develop a hereditary form called “digital hyperkeratosis”
• Dogues de Bordeaux
• Boxers
• English Bulldogs
• Cocker Spaniels
• Bedlington Terriers

If you own one of these breeds, it’s worth regularly checking their paw pads and nose for early signs of keratin buildup. Early intervention keeps it manageable.

Symptoms to Watch For

Hyperkeratosis develops gradually, so it’s easy to miss in the early stages. Here’s what to look for:

• Rough, dry paw pads that feel harder or thicker than normal
• Crusty, flaky nose that doesn’t improve with normal hydration
• Hard, horn-like growths protruding from the paw pads, these can look like small extra claws
• Cracking or fissures in the thickened skin
• Limping or reluctance to walk: if cracks are deep enough to cause pain
• Bleeding or discharge: a sign of infection in cracked areas

If you notice cracking, bleeding, or signs of pain, see your vet promptly. Secondary infections in cracked paw pads can become serious if untreated.

Home Treatment and Management

For mild to moderate hyperkeratosis, home care is usually effective. Here’s a practical routine:

Moisturising

Regular moisturising is the cornerstone of management:

• Paw balm: dog-specific paw balms containing shea butter, beeswax, or vitamin E are widely available and effective
• Coconut oil: unrefined, cold-pressed coconut oil is a safe, affordable option. It’s also safe if your dog licks it
• Apply before bed: this gives the product time to absorb overnight before your dog walks on their paws

Avoid human hand creams, petroleum jelly (which can be harmful if ingested in quantity), and anything containing essential oils, fragrances, or zinc oxide.

Gentle Trimming

If the excess keratin has formed hard protrusions or horn-like growths:

• Soak the paws in warm water for 5-10 minutes to soften the keratin
• Gently trim the softened excess with blunt-ended scissors or nail clippers, only remove the clearly hardened excess, never cut into live tissue
• Apply paw balm immediately after trimming
• If you’re not confident doing this yourself, your vet or a groomer can help

Protective Measures

• Dog boots: useful on rough surfaces to prevent further irritation
• Avoid hot pavement: rough, hot surfaces worsen the condition
• Keep nails trimmed: overgrown nails alter how your dog bears weight, putting extra pressure on paw pads

When to See Your Vet

While mild hyperkeratosis is manageable at home, see your vet if:

• The condition appears suddenly or worsens rapidly
• There are deep cracks that bleed or ooze
• Your dog is limping or showing signs of pain
• The nose is severely affected, cracking, bleeding, or losing pigment
• Home treatments aren’t improving things after 2-3 weeks
• Your dog is young (under 2 years), early onset may indicate a hereditary or immune condition
• You notice other symptoms like lethargy, weight loss, or skin changes elsewhere

Your vet may recommend prescription-strength keratolytic ointments, antibiotics for secondary infections, or further investigation if an underlying condition is suspected.

Prevention and Long-Term Care

Since many cases of hyperkeratosis are genetic or idiopathic, complete prevention isn’t always possible. However, you can reduce severity and prevent complications:

• Regular paw checks: make it part of your grooming routine to inspect paw pads weekly
• Keep paws moisturised: even before hyperkeratosis appears, regular paw balm use helps maintain healthy pads
• Balanced diet: ensure your dog’s food provides adequate zinc and essential fatty acids, which support skin health
• Stay on top of vaccinations: canine distemper vaccination prevents one known cause of hyperkeratosis
• Avoid prolonged contact with harsh surfaces: concrete, salt-treated roads, and very hot or very cold surfaces all stress paw pads

Hyperkeratosis is a lifelong condition in most cases, but with consistent care it rarely impacts your dog’s quality of life. The key is making paw maintenance a regular habit rather than waiting for problems to develop.