Pyoderma

Pyoderma, meaning 'pus in the skin,' is a common bacterial skin infection in pets. It is rarely a primary problem but usually develops as a secondary complication to another underlying condition that compromises the skin's natural defenses. Common predisposing factors include allergies (like flea allergy or atopic dermatitis), parasites (such as mites), hormonal imbalances, immunosuppression, trauma, or excessive moisture. Symptoms can vary depending on the depth of the infection but often include red bumps, pustules, crusts, scales, hair loss, itching, and sometimes a foul odor. Diagnosis typically involves skin cytology to identify bacteria. Treatment usually involves antibiotics, either topical, oral, or both, for several weeks, and crucially, identifying and addressing the underlying cause to prevent recurrence. Superficial pyoderma is common, but deep pyoderma can be more serious.