My Dog Has Lumps Between His Paws! Interdigital Furunculosis in Dogs
Interdigital furunculosis, also known as interdigital cysts or pododermatitis, is a painful and inflammatory condition affecting the paws of dogs.
This condition primarily affects the webbed spaces between a dog's toes and is commonly seen in breeds with tightly packed digits and short bristly hairs on the webbing between their toes, such as Labradors, English Bulldogs & the Shar-Pei. The short hair shafts are easily forced backward into the hair follicles while the dog is walking. Ingrown hairs are very inflammatory in the skin, and secondary bacterial infections are common. Less commonly, a hair shaft can become infected if foreign material, such as a grass seed, becomes embedded in the skin.
Understanding the causes, symptoms, and treatment options for interdigital furunculosis is crucial for pet owners to ensure their furry companions receive timely and effective care.
Causes
Bacterial Infections: Bacteria, especially Staphylococcus intermedius, can infiltrate the hair follicles and sweat glands found between the toes, leading to painful infections.
Foreign Objects: Tiny objects like splinters, grass seeds, or debris can become lodged in the spaces between the toes, causing irritation and infection.
Allergies: Dogs with allergies, particularly to pollen or certain foods, may experience inflammation and itching in their paws, which can contribute to the development of furuncles.
Immune System Disorders: Dogs with compromised immune systems are more susceptible to bacterial infections, which can play a role in the formation of interdigital furuncles.
Excessive Moisture: Constant exposure to wet environments can soften the skin between the toes, making it easier for bacteria to invade and thrive.
Clinical Signs
Recognizing the symptoms of interdigital furunculosis can help pet owners seek veterinary care promptly. Common symptoms include:
Limping or Lameness: Dogs with interdigital furunculosis often experience discomfort and pain while walking, resulting in a noticeable limp or reluctance to put weight on the affected paw.
Swelling and Redness: Infected areas between the toes may appear swollen, red, and irritated. In some cases, these areas may also develop discharge.
Licking and Chewing: Dogs may excessively lick or chew at their paws due to the discomfort caused by furuncles, which can further aggravate the condition.
Painful Reaction: Dogs may react sensitively when their paws are touched or manipulated due to the pain associated with the furuncles.
Unpleasant Odor: The infected areas can emit a foul odor due to the presence of bacteria and pus.
Treatment
Treatment typically involves a combination of approaches:
Topical Treatments: Antiseptic solutions or ointments may be recommended to help disinfect and soothe the affected areas.
Antibiotics: If a bacterial infection is identified, antibiotics may be prescribed to combat the infection.
Pain Management: Pain relief medications may be prescribed to alleviate the discomfort associated with the condition.
Environmental Management: Keeping the dog's paws dry and clean, and avoiding allergens, can help prevent recurrence.
Surgical Intervention: In severe cases, surgical drainage or removal of infected tissue may be necessary.
Prevention
Regular Paw Inspections: Regularly check your dog's paws for any signs of redness, swelling, or discomfort.
Proper Grooming: Keep the hair between the toes trimmed and clean to prevent debris buildup.
Dry Environments: Avoid exposing your dog to excessively wet or muddy areas, especially if they are prone to paw issues.
Allergy Management: If your dog has allergies, work with your veterinarian to manage them effectively.
Interdigital furunculosis can significantly impact a dog's quality of life. By taking preventive measures and staying vigilant, pet owners can help their beloved companions avoid the discomfort and pain associated with interdigital furunculosis.
Medically reviewed by Dr. Kirra Balmanno
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