Help! My Dog Has Dark Eye Gunk! (Vet Answered)
This question has been answered by a vet
Veterinarian & Animal Behaviorist
With nearly two decades in veterinary medicine, Dr. Paola brings hands-on experience across multiple species. A graduate of the University of Guadalajara, she specializes in preventive care, animal welfare, and positive reinforcement training.
The Question
“Is it normal for dogs to have dark eye gunk? We clean Zoe’s eyes once a day, sometimes twice. It dries up but is a bit sticky underneath, almost like a booger texture. Thanks, Dr. Paola! “ – Ellen
Quick Info about Zoe
Hi Ellen,
Some degree of eye discharge can be normal in dogs, especially in those with prominent eyes, short muzzles, or tight facial folds, such as Pugs, Shih Tzus, or Maltese. The dark material you are noticing, with a sticky texture similar to a dried nasal booger, is often a harmless combination of tears, dust, natural oils, and debris. If the discharge is minimal, brownish, and not irritating to the skin around the eyes, it is usually not a cause for concern. Your routine of gently cleaning her eyes once or twice daily is appropriate and helps prevent staining and buildup.
However, if the discharge becomes more frequent, thickens, or changes color to yellow, green, or gray, it could point to an underlying issue like conjunctivitis, tear duct blockage, or mild irritation of the eye surface. Additional signs to watch for include squinting, redness, or Zoe trying to rub her face. If you notice any of these changes, a veterinary evaluation would help identify the cause and ensure her eyes remain healthy and comfortable.
I hope this helps!
– Dr. Paola