What should I check if my dog has tear stains after sleeping?
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Overview
If your dog has tear stains after sleeping, the first things to check are whether the eyes look irritated, whether there is discharge, and whether the staining is happening on one side or both. Tear staining is often linked to excess tears, damp fur, or something mildly irritating the eye area, but there can be several reasons, so it’s worth checking the pattern rather than the stain alone.
Things To Check
1. Check whether the staining is new or has been getting worse over time.
2. Look for redness, swelling, squinting, rubbing, or any sign that your dog seems uncomfortable.
3. Check the type of discharge, as clear watery tears are different from thick, sticky, yellow or green discharge.
4. See whether one eye is affected more than the other, which can sometimes point to a local irritation or blockage.
5. Check for hairs, dust, grooming products, or bedding fibres that may be irritating the eye area while your dog sleeps.
6. Look at the skin under the stained fur for dampness, staining, scabs, broken skin, or a smell that suggests the area stays wet.
7. Note whether your dog is also sneezing, pawing at the face, or showing signs of allergies or nasal congestion.
Common Causes
The most common reason is simply tears sitting on the fur overnight, especially in dogs with shorter faces, long hair around the eyes, or naturally wetter eyes. Mild irritation from dust, bedding, grooming products, or hair touching the eye can also increase tear production.
Blocked tear drainage, eye infections, allergies, eyelid shape differences, or a small foreign body are other possible causes. Less commonly, tear staining can be linked to a more general eye problem that needs veterinary assessment.
What To Do
Start by wiping the area gently with clean, damp cotton wool or a soft pad, using a fresh piece for each eye. Keep the fur around the eyes trimmed if it’s safe for you to do so, and make sure bedding is clean, dry, and free from loose fibres or strong fragrances.
It can also help to monitor when the staining appears and whether anything seems to trigger it, such as grooming, dusty rooms, or a change in bedding. If the area is staying wet, dry it gently afterwards so the skin is less likely to become sore.
If the staining is persistent, worsening, or comes with other eye signs, your vet can check for an underlying cause.
Related Questions
Why does my dog’s eye area keep going damp?
Should I clean tear stains every day?
When does tear staining need a vet check?
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.