Nail, Paw and Pad Conditions in Cats (Pododermatitis)

What Causes Nail, Paw and Pad Conditions in Cats?

Common underlying causes include allergic skin disease, parasites, immune-mediated conditions and infections affecting the skin or nail structures. Conditions affecting the paws and nails (claws) can arise from a range of dermatological and systemic factors, and in many cases, particularly where signs are persistent or unusual, there is an underlying condition affecting the skin or immune response.

Pododermatitis in cats 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 key to achieving lasting control.

Signs of Nail, Paw and Pad Conditions in Cats

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

Common signs include:

• Swelling of the paw pads or digits
• Soft, enlarged or “spongy” paw pads
• Ulceration, sores or crusting on the pads
• Changes in nail shape, growth or structure
• Fragile, brittle, deformed or overgrown nails (claws)
• Redness or inflammation around the nail bed
• Lameness or discomfort when walking
• Discharge or signs of infection

Some cats may also show:

• Licking or attention to the paws, although this may be subtle or not often observed
• Difficulty retracting the claws, scratching normally, or catching the claws on objects

The pattern and distribution of changes can provide important clues to the underlying cause. For example, soft or swollen paw pads may suggest an immune-mediated process such as plasma cell pododermatitis, while more localised changes affecting a single nail, claw or digit may suggest trauma, infection or nail bed disease.

Why Nail, Paw and Pad Conditions Become Recurrent or Chronic

These conditions can recur when treatment focuses on visible infection or inflammation, rather than the underlying cause. While signs may improve with initial or routine treatment, they frequently return if the primary driver, such as immune-mediated disease, allergy or nail bed disease, is not addressed.

This can lead to a self-perpetuating cycle:

• An underlying condition affects the skin, paw pads or nail (claw) structures
• Inflammation develops within the affected tissues
• Licking, grooming or ongoing irritation further disrupts the area
• Bacteria or yeast overgrow, or nail bed inflammation persists
• Infection, swelling or discomfort develops, causing further irritation
• The paw pads, nails or surrounding skin become increasingly abnormal

Over time, this can result in chronic pododermatitis, where the paw pads remain swollen or ulcerated, the nails become persistently abnormal, and discomfort or lameness continues.

How We Diagnose Nail, Paw and Pad Conditions in Cats

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 cat’s assessment begins with a dermatology consultation, where our clinician reviews their history and performs a thorough examination of the paws, nails (claws) and surrounding skin.

From here, our clinicians tailor a targeted diagnostic approach to your cat’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 for underlying allergy or skin disease – including evaluation of clinical pattern and history
• Nail-specific sampling or assessment – in cases involving abnormal nail growth, structure or nail bed disease.

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

How Nail, Paw and Pad Conditions in Cats Are Managed

Management depends on the underlying cause, the severity and duration of disease, and your cat’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 discomfort
• Management of underlying allergy or skin disease
• Treatment of immune-mediated conditions, where present
• Parasite control, where relevant
• Supportive or protective care for affected paw pads or nails (claws)

For many cats, ongoing management may be required to maintain control and prevent recurrence, particularly where an underlying condition is present.

The goal is to restore comfort, support normal paw and nail (claw) function, and achieve long-term stability.

Related Conditions

Cat Allergies

Skin Infections in Cats

Parasites in Cats

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