If you notice crusty dog paws, a rough nose, or thickened skin on your dog's paw pads, hyperkeratosis may be one possible explanation. Dog hyperkeratosis involves excess keratin growth on nose or foot tissue. Many cases are manageable with veterinary guidance — but home trimming or guessing the cause can make things worse.

Hyperkeratosis in dogs

Hyperkeratosis means thickened keratin — the tough protein that normally forms paw pads and nose leather. When keratin overgrows, pads or the nose can look dry, cracked, crusty, or hairy with extra fringed tissue.

Nasal hyperkeratosis in dogs and paw pad hyperkeratosis in dogs can occur separately or together. Some cases are breed-related; others signal underlying disease. A veterinary exam helps determine the cause and appropriate care plan.

Symptoms

Signs vary by location and severity. Mild thickening may look like extra dry skin; advanced cases can involve painful cracks, bleeding, or difficulty walking.

Other skin conditions can look similar, so visual inspection alone is not enough for a reliable diagnosis.

  • Thickened, rough, or crusty paw pads
  • Extra horny growth or fringed tissue on pad edges
  • Dry, cracked, or flaky nose leather
  • Nasal hyperkeratosis with hard crust on the nose
  • Limping or reluctance to walk on rough surfaces
  • Bleeding, redness, or signs of infection
  • Hair growth on normally smooth nose tissue in some cases

Common causes

Some breeds — including certain retrievers, terriers, and brachycephalic breeds — are predisposed to idiopathic nasal or paw pad hyperkeratosis, meaning no underlying disease is found.

Hyperkeratosis can also be linked to autoimmune conditions, infections, zinc deficiency, distemper, and other systemic illnesses. Your veterinarian may recommend tests to rule out treatable causes.

  • Breed-related or idiopathic hyperkeratosis
  • Autoimmune or inflammatory skin disease
  • Chronic irritation or abnormal wear patterns
  • Underlying systemic illness
  • Age-related changes in some dogs
  • Secondary infection in cracked tissue

What to do now

Schedule a veterinary appointment if you notice persistent thickening, cracking, limping, or changes that worsen over time. Bring photos if the appearance fluctuates between visits.

Keep paw pads clean and dry, use pet-safe paw balms only if your vet approves, and avoid walking on hot pavement or rough salt-treated surfaces when pads are sore.

  • Book a vet exam for new or worsening pad or nose changes
  • Take note of when symptoms started and whether they are spreading
  • Avoid trimming, cutting, or filing thickened tissue at home
  • Use a vet-recommended moisturizer if advised
  • Protect sore paws from harsh surfaces during walks

What not to do

Do not attempt to cut, clip, or shave hyperkeratotic tissue at home. Paw pads and nose tissue bleed easily and can become infected when trimmed improperly.

Do not apply human lotions, essential oils, or steroid creams without veterinary approval. Do not assume thickened tissue is only cosmetic.

  • Do not trim crusty tissue with scissors or clippers at home
  • Do not use harsh human skin products without vet guidance
  • Do not ignore limping or bleeding cracks
  • Do not delay care if tissue looks infected

When to call a vet

Contact your veterinarian when you first notice rough dog paw pads or nasal changes that do not improve with basic care, or anytime discomfort is present.

Seek prompt care if pads are cracked and bleeding, your dog is limping, tissue looks infected, or thickening is rapidly worsening.

  • New or worsening thickened skin on paws or nose
  • Cracks, bleeding, or open sores
  • Limping or reluctance to walk
  • Redness, swelling, discharge, or foul odor
  • Signs of pain when paws are touched
  • Hyperkeratosis accompanied by other illness signs

Diagnosis and treatment overview

Your veterinarian may perform a physical exam, skin scrapings, biopsies, blood work, or other tests depending on what they find. Treatment depends on the underlying cause — there is no one-size-fits-all home fix.

Management may include prescribed topical products, supplements, treatment of underlying disease, or professional pad care. Follow your vet's plan rather than experimenting with unproven remedies.

Prevention

For breed-predisposed dogs, regular veterinary monitoring helps catch problems early. Keeping nails trimmed, maintaining healthy weight, and protecting paws in extreme weather may reduce secondary irritation.

There is no guaranteed way to prevent all cases of hyperkeratosis, but early veterinary attention can prevent minor thickening from becoming painful.