Why Does My Shiba Inu Have Watery Eyes? 7 Common Causes & When to Worry

Watery eyes in Shiba Inu can range from a harmless, brief reaction to dust to a warning sign of conditions like atopic dermatitis, primary closed-angle glaucoma, or a scratched cornea. Because the breed is genetically prone to several eye-related issues — and to allergies that often show up around the eyes first — it helps to know what is normal, what is not, and when a fast vet visit matters.

Normal vs. Not Normal Tearing in Shibas

A small amount of clear, thin moisture in the inner corner of the eye is normal. The Shiba's tight, almond-shaped eyes and slightly forward-set tear ducts make this more visible than in some floppy-eared breeds.

Signs that the tearing is not normal:

• Constant wetness or tears running down the muzzle
• Red, pink, or swollen conjunctiva (the white part)
• Squinting, pawing at the eye, or rubbing the face on furniture
• Thick yellow, green, or pus-like discharge
• A cloudy, bluish, or hazy cornea
• Crusty "sleep" that seals the eye shut in the morning

If you see any of the above, especially squinting or colored discharge, book a vet appointment within 24 hours.

Top Causes of Watery Eyes in Shiba Inu

1. Environmental Irritants and Allergens (Atopic Dermatitis)

Atopic dermatitis is one of the most common health issues in the breed, and the eyes are an early tell. Pollen, dust mites, mold, smoke, and household cleaners can all trigger reflex tearing. Shibas with skin allergies often get itchy, red, watery eyes at the same time as ear infections or paw-licking.

2. Breed-Related Tear Staining

The Shiba's tight facial skin and prominent inner eyelid can cause mild epiphora (tears spilling onto the fur). Reddish-brown staining under the eyes is common, especially in red and sesame Shibas, and is usually cosmetic — not a medical problem.

3. Foreign Bodies and Scratches

Shibas are hunters with a strong prey drive. A grass awn, foxtail, cat claw, or twig can scratch the cornea and cause sudden, heavy tearing, squinting, and pawing. Any sudden one-sided tearing is an eye emergency until proven otherwise.

4. Conjunctivitis ("Pink Eye")

Bacterial or viral conjunctivitis causes redness, swelling, and watery-to-purulent discharge. It can affect one or both eyes and may accompany a mild upper respiratory infection.

5. Glaucoma (Primary Closed-Angle)

Shiba Inu are a high-risk breed for primary closed-angle glaucoma. Early signs include tearing, a red or cloudy eye, a dilated pupil, and visible discomfort. Glaucoma is a true emergency: untreated, it can blind a dog within hours to days. Call your vet or an emergency clinic immediately if the eye looks enlarged, blue, or painful.

6. Cataracts and Lens Changes

Cataracts are seen in the breed, especially with age. Early lens changes can cause increased tearing, a bluish haze, or vision bumps. A yearly CERF/CAER eye exam (part of the recommended CHIC panel) catches these before they progress.

7. Dental Disease and Facial Pain

Because the upper tooth roots sit right under the eye socket, infected or abscessed upper fourth premolars (carnassial teeth) can cause tearing and swelling under the eye. Bad breath and dropping food are giveaways.

Less Common but Worth Mentioning

• Dry eye (KCS): paradoxically causes watery eyes because the body overcompensates for poor tear quality. The cornea looks dull and sticky yellow discharge is typical.
• Distichiasis: extra eyelashes growing inward, scratching the cornea. Common in Shibas.
• Entropion: the lower eyelid rolls inward, though less common in Shibas than in loose-faced breeds.

What You Can Do at Home

• Wipe the corners of the eyes with a soft, damp cloth or vet-approved eye wipe — always wipe away from the eye.
• Keep the facial folds and hair trimmed short around the eyes.
• Avoid smoke, strong perfumes, and aerosol cleaners near your dog.
• Use a damp cloth after walks during high-pollen seasons.
• Do not use human eye drops, contact solution, or over-the-counter "red-eye" drops unless your vet has specifically approved them.

When to See the Vet

Same-day appointment if you see:

• Yellow, green, or bloody discharge
• Squinting, holding the eye shut, or pawing
• A cloudy, blue, or bulging eye
• Sudden one-sided tearing
• A foreign object you can see

A routine vet visit is fine for:

• Mild, clear tearing without other symptoms
• Chronic tear staining that is stable
• Seasonal, mild eye itch with no pain

Prevention and Long-Term Eye Health

• Schedule a yearly CAER/CERF eye exam (one of the three CHIC tests recommended for the breed, alongside OFA hips and OFA patella).
• Keep up with dental cleanings under anesthesia — a healthy mouth protects the eyes.
• Manage allergies early with your vet; chronic atopic disease makes eye problems worse.
• Feed a balanced diet and maintain a healthy weight to lower glaucoma risk.
• Choose a reputable breeder who screens for eye conditions — ask for CAER certificates on both parents.

A Shiba's expressive almond eyes are part of the breed's charm, and most watery-eye episodes are quick to clear once the cause is identified. The key is to watch the difference between a brief, clear reaction and a persistent or painful change — because when it comes to canine eyes, hours really do matter.

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Related reading: Shiba Inu Health Issues: The Complete Guide for Owners