Why Is My Dog Having Eye Discharge?
Share This Guide
Read time: 3 minutes
Overview
Eye discharge in dogs is fairly common and can happen for lots of reasons, from a bit of dust or irritation to allergy, a blocked tear duct, or an eye infection. What it looks like, how much there is, and whether your dog seems uncomfortable can give you useful clues.
Small amounts of clear discharge are often less concerning than thick, yellow, green, bloody, or smelly discharge. If your dog is squinting, rubbing the eye, or the eye looks red or swollen, it’s worth paying closer attention.
Things To Check
1. Notice the colour and texture. Clear, watery discharge can have different causes from sticky, white, yellow, green, or bloody discharge.
2. Check whether it’s one eye or both. One-sided discharge can point to local irritation, while both eyes may suggest a wider issue such as allergy or environmental irritation.
3. Look for redness, swelling, squinting, pawing, blinking more than usual, or your dog keeping the eye partly closed.
4. See if there’s anything obvious in or around the eye, such as dust, grass seeds, hair, dried discharge, or a bit of debris.
5. Think about timing. Does it happen after walks, after grooming, in windy weather, or at certain times of year?
6. Check for other signs, such as sneezing, itching, rubbing the face, or a change in your dog’s energy or appetite.
7. Notice whether the discharge keeps returning or is getting worse instead of settling.
Common Causes
The most common cause is mild irritation from dust, pollen, wind, grooming products, or a small bit of debris.
Allergies can also make the eyes water and produce a clear discharge, often alongside other signs like itching or sneezing.
Blocked tear ducts or tear drainage problems may cause repeated wetness or staining around the eye.
Conjunctivitis, which is inflammation of the lining of the eye, can cause discharge along with redness, soreness, and rubbing.
Less commonly, eye discharge can happen with a scratch, ulcer, foreign body, or another eye problem that needs veterinary attention.
What To Do
Gently wipe away discharge with clean, damp cotton wool or gauze, using a fresh piece for each eye if both are affected.
Keep the area around the eye tidy and avoid letting hair or debris build up near the face.
If the discharge is mild, monitor it for a day or two and note whether it improves, stays the same, or worsens.
Try to reduce obvious irritants where you can, such as dusty bedding, windy exposure, or products that may be irritating the face.
Don’t use human eye drops unless your vet has told you to. If your dog is uncomfortable, squinting, or the discharge changes colour or amount, it’s sensible to get advice.
When To Contact A Vet
Contact your vet promptly if the discharge is thick, yellow, green or bloody, if the eye looks red, swollen or cloudy, or if your dog is squinting, rubbing at the eye, or seems sore. It’s also important to get advice if the problem is only in one eye, keeps coming back, or doesn’t improve within a short time.
Eye problems can worsen quickly, so it’s better to have a vet check anything that looks painful or unusual.
Products That May Help
If your dog needs regular face or coat care, simple grooming routines can help keep the eye area clean and make discharge easier to manage day to day.
Related Questions
Why does my dog have goopy eyes in the morning?
When is eye discharge in dogs an emergency?
Can allergies cause eye discharge in dogs?
Atlas is here to support owners with practical, easy-to-understand guidance. It is not a substitute for professional veterinary advice. If you're concerned about your animal's health, symptoms worsen, or something doesn't feel right, contact your vet.