If your Shih Tzu constantly has watery eyes, tear stains, or damp fur around the eyes, you’re not alone. Excessive tearing is extremely common in Shih Tzus, but that doesn’t mean it should be ignored. In many cases, it’s a sign of irritation, blockage, or an underlying eye issue that needs attention.
This article explains why Shih Tzu eyes tear so much, what’s normal vs. concerning, and how to help your dog feel more comfortable.
What Does “Constant Tearing” Look Like?
You may notice:
-
Clear tears running down the face
-
Brown or reddish tear stains
-
Wet fur under the eyes
-
Frequent blinking or squinting
-
Pawing or rubbing at the face
While tear stains are often seen as cosmetic, the tearing itself usually signals irritation.
Why Shih Tzus Are Prone to Watery Eyes
Shih Tzus are a brachycephalic (flat-faced) breed, which affects eye structure and tear drainage.
Common anatomical factors include:
-
Shallow eye sockets (eyes protrude slightly)
-
Narrow or blocked tear ducts
-
Facial folds that trap moisture
-
Hair growing toward the eyes
These traits make Shih Tzus especially vulnerable to eye problems.
Most Common Causes of Excessive Tearing in Shih Tzus
1. Blocked or Narrow Tear Ducts
Very common in Shih Tzus.
-
Tears can’t drain properly
-
Overflow onto the face
-
Often chronic
A vet can flush tear ducts if needed.
2. Hair Irritating the Eyes
Long facial hair can:
-
Poke the cornea
-
Cause constant irritation
-
Trigger excessive tearing
Even a single stray hair can cause nonstop watering.
3. Allergies
Environmental or food allergies may cause:
-
Watery eyes
-
Redness
-
Itching of face and paws
Allergy-related tearing often worsens seasonally.
4. Eye Infections or Inflammation
Bacterial or viral infections may cause:
-
Thick discharge
-
Red or swollen eyes
-
Squinting or discomfort
Infections require prompt veterinary treatment.
5. Corneal Ulcers or Scratches
⚠️ Painful and serious
-
Can cause sudden, heavy tearing
-
Often paired with squinting
-
Risky if untreated
Shih Tzus are especially prone due to prominent eyes.
When Watery Eyes Are a Red Flag
🚨 See a vet promptly if your Shih Tzu:
-
Squints or keeps an eye closed
-
Has yellow/green discharge
-
Shows redness or swelling
-
Rubs the eyes excessively
-
Develops sudden or worsening tearing
Eye issues can worsen very quickly in small breeds.
What You Can Do at Home
✅ Gently clean eyes daily with dog-safe wipes
✅ Keep facial hair trimmed away from eyes
✅ Keep the face dry to prevent staining
✅ Use stainless steel bowls (may help staining)
❌ Do NOT use human eye drops
❌ Do NOT ignore persistent tearing
❌ Do NOT assume tear stains are “just cosmetic”
How Vets Diagnose the Cause
Your vet may:
-
Examine the eyes closely
-
Perform a tear duct flush
-
Use dye tests to check for ulcers
-
Assess allergies or infections
Correct diagnosis leads to safe, targeted treatment.
Can Tear Stains Be Prevented?
Tear stains improve when the underlying cause is treated. While grooming helps, true prevention means:
-
Managing eye irritation
-
Treating infections
-
Addressing tear duct issues
There is no single “magic wipe”—health comes first.
Final Takeaway
Watery eyes are common in Shih Tzus, but constant tearing is not something to ignore. Whether it’s hair irritation, blocked tear ducts, or an eye condition, early care can prevent pain and long-term damage.
🐾 Healthy eyes should be comfortable—not constantly watering.