TL;DR: Green discharge in skin folds typically indicates a bacterial infection that requires a veterinary exam within 24 to 48 hours. While usually not an immediate life-threatening emergency, it is a painful condition that can worsen if left untreated.
Why does my dog have green discharge in their skin folds?
Finding green discharge within your dog's skin folds typically indicates a bacterial infection known as Skin Fold Dermatitis or Intertrigo. These folds create a warm, dark, and moist environment that is a perfect breeding ground for bacteria and yeast. When the skin becomes inflamed and infected, the body sends white blood cells to the area, which results in the characteristic green or yellowish pus you are seeing.
Is green discharge in skin folds a medical emergency for my dog?
- Urgency Level: Medium.
- The condition indicates an active, painful infection that requires professional treatment.
- Untreated infections can penetrate deeper skin layers or lead to systemic health issues.
- Schedule a veterinary exam within the next 24 to 48 hours.
- Seek immediate care if your dog also exhibits extreme lethargy, loss of appetite, or fever.
How does sending a photo help triage my dog's skin infection?
- Enables the medical team to assess the severity of the inflammation visually.
- Helps identify the exact color and texture of the discharge to determine the type of infection.
- Allows professionals to check for any surrounding skin damage or secondary lesions.
- Provides information to determine how quickly your pet needs to be seen by a doctor.
- Assists the clinic in preparing the necessary diagnostic tools and treatments before you arrive.
Clinical Context (Merck Veterinary Manual)
In dogs, green discharge from skin folds is often associated with bacterial pyoderma, particularly in warm, moist areas such as lip folds, facial folds, and vulvar folds, which have higher bacterial counts. Chronic infection of these folds can result in discoloration and matting of the hair with a thick, yellowish or brown, malodorous discharge overlying hyperemic and sometimes ulcerated skin. Deep pyoderma can manifest with pain, crusting, odor, and exudation of blood and pus, with common locations including the muzzle, chin, elbows, hocks, and interdigital areas.
Chapter: Dermatology
Source: The Merck Veterinary Manual, 11th Edition (Page 364)