Dog Interdigital Cysts

Dog interdigital cysts, or furuncles, are painful, inflamed nodules between the toes (usually front paws) caused by deep infection, foreign bodies (grass seeds), or allergies, often in breeds with short, bristly hair or broad paws (e.g., Bulldogs, Labradors). They are not true cysts, but infected hair follicles, requiring veterinary care for antibiotics, anti-inflammatories, and to address underlying issues to prevent recurrence.

Symptoms and Identification

• Appearance: Red, shiny, purple, or pus-filled bumps (nodules) in the webbing of the toes.
• Behaviour: Intense paw chewing, licking, limping, or reluctance to walk.
• Discharge: Cysts may rupture and drain fluid.

Common Causes and Contributing Factors

• Deep Bacterial Infection: The primary cause, often referred to as interdigital furunculosis.
• Foreign Objects: Embedded material like grass seeds or splinters.
• Breed Predisposition: Bulldogs, Shar-Peis, Boxers, German Shepherds, Mastiffs, and Labrador Retrievers.
• Physical Factors: Obesity, excessive skin webbing, or short, coarse fur.
• Underlying Issues: Allergies (food or environmental), which cause intense licking/chewing.

Treatment and Management

• Veterinary Diagnosis: Essential to identify the underlying cause and determine if the infection is bacterial or yeast-based.
• Medication: Oral antibiotics, anti-inflammatories, or, in some cases, steroids for allergy management.
• Topical Care: Medicated shampoos, wipes, or balms, such as Skin Soother to soothe and heal.
• Prevention of Self-Trauma: Use of an Elizabethan collar (E-collar) to stop licking.
• Surgery/Advanced Care: For severe or recurring cases, treatments may include laser therapy, surgical excision, or Fusion Podoplasty

When to See a Veterinarian

• It is important not to pop or squeeze these lesions at home, as this can worsen the infection. Seek veterinary care if you notice:
• A painful, swollen, or bleeding nodule between the toes.
• Your dog is excessively licking or biting their paws.
• The swelling persists or returns frequently