Nail, Paw and Pad Conditions in Dogs (Pododermatitis)

What Causes Nail, Paw and Pad Conditions in Dogs?

Common underlying causes include allergic skin disease, parasites, immune-mediated conditions and other factors affecting the skin barrier. Conditions affecting the paws and nails can arise from a range of underlying dermatological and systemic factors. In many cases, particularly where signs are recurrent, there is an underlying condition affecting the skin barrier or immune response.

Pododermatitis is best understood by considering the underlying causes and contributing factors:

While infection or visible inflammation may be present, it is often not the primary cause. Identifying and addressing the underlying driver is essential to achieve lasting control.

Signs of Nail, Paw and Pad Conditions in Dogs

Signs may affect one or multiple paws and can vary depending on the underlying cause. In many cases, signs are recurrent or progressive, particularly where an underlying condition is present.

• Reddish-brown staining of the fur on the paws (saliva staining), often associated with chronic licking
• Licking or chewing of the paws
• Redness or inflammation between the toes
• Swelling of the feet or digits
• Discharge or odour associated with infection
• Lameness or discomfort when walking
• Changes in nail shape, colour or structure
• Fragile, brittle or broken nails
• Crusting, ulceration or sores on the paw pads
• Thickening or darkening of the skin in chronic cases

The pattern and distribution of changes can provide important clues. For example, involvement of multiple paws is often associated with allergic skin disease, while more localised changes may suggest trauma, infection or foreign material.

Why Nail, Paw and Pad Conditions Become Recurrent or Chronic

These conditions often recur because treatment focuses on visible infection or inflammation, rather than the underlying cause. While signs may improve with initial treatment, they frequently return if the primary driver is not addressed.

This can lead to a self-perpetuating cycle:

• An underlying condition disrupts the skin barrier
• Inflammation develops within the paw or nail structures
• Licking and chewing further irritate the area
• Bacteria and yeast overgrow
• Infection develops, causing further inflammation and discomfort
• The skin and nail structures become increasingly abnormal

Over time, this can result in chronic pododermatitis, where the skin becomes thickened and the nails or paw pads are persistently affected.

How We Diagnose Nail, Paw and Pad Conditions in Dogs

These conditions can have multiple contributing factors, so a systematic and structured approach is required to identify both the underlying cause and any secondary infection. Where referral is recommended, your dog’s assessment begins with a dermatology consultation, where our clinician reviews their history and performs a thorough examination of the paws, nails and surrounding skin.

From here, our clinicians tailor a targeted diagnostic approach to your dog’s individual presentation.

A tailored diagnostic approach may include:

• Cytology and Fine-Needle Aspirates – used to identify bacterial or yeast infection and guide targeted treatment decisions
• Elimination Diet Trials – used in selected cases where a cutaneous adverse food reaction is suspected
• Airborne Environmental Allergy Testing – used in selected cases where environmental allergy is suspected as an underlying cause of recurrent skin disease and infection, helping guide allergen-specific immunotherapy (ASIT). 
• Biopsy and Dermatopathology – recommended in selected cases, particularly where immune-mediated or more complex conditions affecting the nails or paw pads are suspected
• Skin scrapings and parasite testing – used to rule out mites and other parasitic causes
• Assessment of flea exposure and response to effective flea control – where relevant
• Nail-specific sampling or assessment – in cases involving abnormal nail structure or growth

Each step helps build a complete clinical picture, ensuring that treatment is based on an accurate diagnosis.

How Nail, Paw and Pad Conditions in Dogs Are Managed

Management depends on the underlying cause, the severity and duration of disease, and your dog’s individual needs. Effective treatment requires not only addressing infection and inflammation, but also managing the factors driving recurrence.

Depending on the diagnosis, treatment may include:

• Targeted treatment of bacterial or yeast infection
• Medications to reduce inflammation and itching (pruritus)
• Management of underlying allergy or skin disease
• Treatment of immune-mediated conditions where present
• Parasite control, where relevant
• Protective or supportive care for affected paw pads or nails
• Long-term strategies to reduce licking, irritation and recurrence

For many dogs, ongoing management is required to maintain control and prevent flare-ups.

The goal is to restore comfort and normal function, support healthy skin and nail growth, and achieve long-term stability.

Related Conditions

Dog Allergies

Skin Infections in Dogs

Parasites in Dogs

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