Dog Interdigital Cysts: Diagnosis and Surgical Management

Interdigital furunculosis causes painful cysts between the toes in dogs. Identifying underlying causes prevents recurrence after treatment.

Key Facts

Interdigital cysts are typically furunculosis caused by deep hair follicle rupture
Short-coated breeds including English Bulldogs and Labrador Retrievers are predisposed
Underlying atopic dermatitis, demodicosis or hypothyroidism predisposes to recurrence
Surgical intervention including CO2 laser or wide excision provides definitive treatment
Long-term management requires addressing the underlying skin condition

Welfare Considerations

Interdigital furunculosis causes significant pain with every step, affecting the dog mobility and willingness to exercise. Dogs may lick the affected feet obsessively, causing secondary infection and worsening the cycle. Initial medical management with antibiotics and anti-inflammatory treatment provides temporary relief but recurrence is common without addressing the root cause. Identifying and treating underlying atopic disease, parasitic infestation or endocrine dysfunction is essential for long-term welfare. Surgical excision under general anaesthesia provides definitive resolution of established cysts.

What You Can Do

Seek veterinary assessment for any swelling, pain or persistent licking between the toes
Complete any prescribed antibiotic course in full even if lesions appear to resolve
Ask your vet about allergy testing or trial elimination diet if cysts recur
Discuss CO2 laser surgery referral for recurrent or non-responding cases
Keep feet clean and dry and reduce walking on abrasive surfaces during recovery