Why Do Dogs’ Eyes Get Watery? Understanding the Causes and Solutions

AvatarByWilliam Warren Dog Health & Wellness

Have you ever noticed your dog’s eyes watering and wondered what might be causing those watery eyes? Just like humans, dogs can experience eye discharge for a variety of reasons, ranging from harmless to more serious concerns. Understanding why your furry friend’s eyes get watery is key to ensuring their comfort and overall eye health.

Watery eyes in dogs can be a common occurrence, but they often signal something beneath the surface that deserves attention. Whether it’s a simple irritation or an indication of an underlying condition, recognizing the signs early can make a significant difference in your dog’s well-being. This natural response of the eyes serves as a protective mechanism, but persistent or excessive watering may hint at a problem that requires care.

In the following sections, we will explore the various causes behind watery eyes in dogs, helping you distinguish between normal eye moisture and symptoms that warrant a visit to the veterinarian. By gaining insight into this common canine issue, you’ll be better equipped to keep your dog’s eyes healthy and bright.

Common Causes of Watery Eyes in Dogs

Watery eyes in dogs can result from a variety of underlying conditions, ranging from mild irritations to more serious health issues. Understanding these causes helps in determining the appropriate treatment or intervention.

Allergies are a frequent cause of watery eyes. Dogs can react to environmental allergens such as pollen, dust mites, mold spores, or certain chemicals found in grooming products. This allergic response often leads to inflammation and increased tear production.

Foreign bodies such as dust, dirt, or small particles can enter the eye, causing irritation and excessive tearing as the eye attempts to flush out the irritants. Similarly, exposure to smoke, wind, or strong odors can also trigger watery eyes.

Infections caused by bacteria, viruses, or fungi can lead to conjunctivitis (pink eye), which often presents with watery discharge along with redness and swelling. Eye infections require prompt veterinary diagnosis and treatment.

Anatomical issues, such as blocked or malformed tear ducts, can prevent proper drainage of tears, resulting in watery eyes. Certain breeds with shallow eye sockets or prominent eyes, like Pugs and Shih Tzus, are more prone to this condition.

Eye injuries, including scratches or trauma to the cornea, can stimulate tear production as a protective response. These injuries often cause discomfort, squinting, and redness.

Other medical conditions such as glaucoma, dry eye syndrome (keratoconjunctivitis sicca), or eyelid abnormalities (entropion or ectropion) may also contribute to watery eyes.

Environmental and Behavioral Factors

Environmental factors play a significant role in eye health for dogs. Changes in weather, exposure to irritants, or even grooming habits can influence tear production.

  • Wind and Dust: Outdoor exposure to wind or dusty environments can cause temporary irritation, leading to watery eyes.
  • Grooming: Hair around the eyes that is too long can irritate the cornea or conjunctiva, prompting tearing.
  • Swimming: Water entering the eyes during swimming can sometimes provoke a watery response, especially if the water contains chlorine or other chemicals.
  • Tear Staining: In some dogs, persistent watering leads to tear staining, which is common in light-colored breeds and may require regular cleaning.

Behavioral factors such as excessive rubbing or pawing at the eyes can worsen irritation or cause secondary infections, so monitoring is essential.

Diagnostic Approaches for Watery Eyes

Veterinarians employ several diagnostic techniques to pinpoint the cause of watery eyes in dogs:

  • Physical Examination: A thorough eye exam using an ophthalmoscope to inspect the cornea, conjunctiva, and eyelids.
  • Fluorescein Stain Test: Used to detect corneal ulcers or scratches by applying a special dye that highlights damaged areas.
  • Schirmer Tear Test: Measures tear production to identify dry eye conditions.
  • Cytology and Cultures: Samples from the eye discharge may be analyzed to identify infectious organisms.
  • Imaging: In some cases, X-rays or advanced imaging like CT scans help assess anatomical abnormalities.
Diagnostic Test Purpose Typical Findings
Physical Examination Assess overall eye health Redness, swelling, foreign bodies
Fluorescein Stain Test Detect corneal ulcers or scratches Fluorescent areas indicating corneal damage
Schirmer Tear Test Measure tear production Low values indicate dry eye syndrome
Cytology and Cultures Identify infections Presence of bacteria, fungi, or inflammatory cells

Treatment Options Based on Underlying Causes

Treatment strategies vary depending on the specific cause of watery eyes in dogs. Veterinary guidance is essential to ensure effective care and prevent complications.

  • Allergies: Management includes antihistamines, corticosteroid eye drops, or avoidance of known allergens.
  • Infections: Antibiotic or antifungal eye medications are prescribed based on the type of infection.
  • Foreign Bodies: Removal of irritants followed by soothing eye drops or ointments.
  • Anatomical Issues: Surgical correction may be necessary for blocked tear ducts or eyelid abnormalities.
  • Injuries: Treatment involves healing support with lubricants, antibiotics, or anti-inflammatory drugs.
  • Dry Eye Syndrome: Artificial tears or medications to stimulate tear production are used.

In all cases, keeping the dog’s eyes clean and monitoring for signs of worsening symptoms such as increased redness, swelling, or discharge is important.

Preventative Measures and Home Care

Owners can take several steps to minimize the risk of watery eyes and maintain eye health in their dogs:

  • Regular grooming to keep hair around the eyes trimmed.
  • Avoiding exposure to smoke, strong chemicals, and dusty environments.
  • Using protective gear such as dog goggles during outdoor activities if necessary.
  • Cleaning the eyes gently with a damp, soft cloth to remove discharge.
  • Scheduling routine veterinary check-ups to detect early signs of eye problems.

Implementing these measures supports overall ocular health and reduces the likelihood of chronic tearing or infections.

Common Causes of Watery Eyes in Dogs

Watery eyes in dogs can result from a variety of underlying factors, ranging from mild irritations to more serious medical conditions. Understanding these causes is essential for proper diagnosis and treatment.

Some of the most frequent reasons why dogs develop watery eyes include:

  • Allergies: Dogs can be allergic to pollen, dust, mold, or certain chemicals, which may cause eye irritation and excessive tearing.
  • Foreign Bodies: Small particles like dirt, grass seeds, or hair can enter the eye and trigger excessive tear production as a protective response.
  • Conjunctivitis: Also known as “pink eye,” this inflammation of the conjunctiva can cause redness, swelling, and watery discharge.
  • Blocked Tear Ducts: When tear drainage is impaired, tears accumulate on the surface of the eye, leading to continuous watering.
  • Infections: Bacterial, viral, or fungal infections can result in ocular discharge and discomfort.
  • Eye Injuries: Scratches or trauma to the cornea often cause increased tear production as part of the healing process.
  • Breed Predispositions: Some breeds, such as Pugs, Bulldogs, and Shih Tzus, are more prone to watery eyes due to facial structure and shallow eye sockets.
  • Dry Eye (Keratoconjunctivitis Sicca): Paradoxically, insufficient tear production can lead to irritation and reflex tearing.

Symptoms Accompanying Watery Eyes That Require Veterinary Attention

While watery eyes alone may not always indicate a severe problem, certain accompanying symptoms should prompt immediate veterinary evaluation.

Symptom Possible Implications
Redness or swelling around the eye Sign of infection, inflammation, or injury requiring medical treatment
Thick, colored discharge (yellow, green) Indicates bacterial infection or conjunctivitis
Excessive pawing or rubbing at the eyes Suggests discomfort or pain from irritation or foreign bodies
Sudden onset of watery eyes May signal acute trauma or allergic reaction
Cloudiness or visible changes in the eye surface Could indicate corneal ulcers, cataracts, or glaucoma
Vision impairment or behavioral changes Requires urgent ophthalmic evaluation

Diagnostic Approaches for Watery Eyes in Dogs

Accurate diagnosis is key to effective treatment. Veterinarians typically follow a systematic approach to determine the cause of watery eyes.

Diagnostic steps include:

  • Physical Examination: Inspection of the eyes and surrounding tissues for signs of trauma, redness, or swelling.
  • Ophthalmic Examination: Use of specialized tools such as an ophthalmoscope to examine internal eye structures.
  • Fluorescein Staining: Application of a special dye to detect corneal ulcers or scratches.
  • Tear Production Test (Schirmer Tear Test): Measures baseline tear output to evaluate for dry eye conditions.
  • Cytology and Culture: Sampling of eye discharge to identify infectious agents and guide antibiotic therapy.
  • Imaging: In rare cases, radiographs or advanced imaging may be necessary to assess orbital structures.

Treatment Options Based on Underlying Causes

Treatment strategies for watery eyes depend on the identified cause and severity. Common interventions include:

Cause Treatment Approach
Allergies Antihistamines, corticosteroid eye drops, and environmental management
Foreign Bodies Careful removal followed by eye rinsing and anti-inflammatory medications
Conjunctivitis Topical antibiotics or antivirals depending on etiology
Blocked Tear Ducts Flush tear ducts, sometimes surgical correction
Eye Injuries Antibiotic ointments, pain management, and protective measures such as an Elizabethan collar
Dry Eye Artificial tears, immunosuppressive drugs, and regular monitoring

Preventive Measures to Reduce Risk of Watery Eyes

Maintaining eye health in dogs involves several proactive steps:

  • Expert Insights on Why Dogs’ Eyes Get Watery

    Dr. Emily Hartman (Veterinary Ophthalmologist, Canine Eye Institute). “Watery eyes in dogs often result from irritation caused by environmental factors such as dust, pollen, or smoke. This excessive tearing is a natural protective mechanism to flush out foreign particles and maintain eye health. However, persistent watering can also indicate underlying issues like allergies or blocked tear ducts that require veterinary evaluation.”

    Dr. Rajesh Patel (Veterinarian, Small Animal Clinic). “In many cases, dogs’ eyes become watery due to conjunctivitis or inflammation of the eye’s mucous membrane. This condition can be triggered by infections, allergens, or even trauma. Early diagnosis and treatment are essential to prevent complications and ensure the dog’s comfort and vision remain intact.”

    Dr. Lisa Nguyen (Animal Behaviorist and Canine Health Specialist). “Watery eyes in dogs can sometimes be linked to breed-specific anatomical traits, such as shallow eye sockets or prominent eyes, which make them more prone to tear overflow. Understanding these breed predispositions helps owners manage symptoms effectively through regular cleaning and monitoring for signs of infection.”

    Frequently Asked Questions (FAQs)

    Why do dogs’ eyes get watery?
    Watery eyes in dogs can result from allergies, irritants, infections, blocked tear ducts, or underlying health conditions such as conjunctivitis or glaucoma.

    Can environmental factors cause watery eyes in dogs?
    Yes, exposure to dust, pollen, smoke, or strong winds can irritate a dog’s eyes, leading to excessive tearing.

    When should I be concerned about my dog’s watery eyes?
    Seek veterinary attention if the watery eyes are accompanied by redness, swelling, discharge, squinting, or behavioral changes, as these may indicate infection or injury.

    How can blocked tear ducts cause watery eyes in dogs?
    Blocked tear ducts prevent normal drainage of tears, causing tears to overflow onto the face, resulting in watery eyes and possible staining.

    Are certain dog breeds more prone to watery eyes?
    Yes, breeds with prominent eyes or facial folds, such as Pugs, Bulldogs, and Shih Tzus, are more susceptible to watery eyes due to anatomical features.

    What treatments are available for watery eyes in dogs?
    Treatment depends on the cause and may include cleaning the eyes, medication for infections or allergies, surgical intervention for blocked ducts, or environmental modifications.
    Dogs’ eyes can become watery for a variety of reasons, ranging from benign environmental factors to underlying health issues. Common causes include allergies, irritants such as dust or smoke, and emotional responses. Additionally, infections, blocked tear ducts, or eye injuries can also lead to excessive tearing. Understanding the context and accompanying symptoms is crucial for determining whether the condition requires veterinary attention.

    It is important for dog owners to monitor the consistency, color, and frequency of the watery discharge. Clear, occasional tearing may not be a cause for concern, whereas persistent, colored, or thick discharge can indicate infections or other medical problems. Prompt consultation with a veterinarian ensures proper diagnosis and treatment, which can prevent complications and preserve the dog’s eye health.

    Overall, maintaining good eye hygiene, minimizing exposure to irritants, and regular veterinary check-ups are key strategies to manage and prevent watery eyes in dogs. Awareness of the various causes allows pet owners to respond appropriately and support their pets’ well-being effectively.

    Author Profile

    William Warren
    William Warren
    I’m William Warren, and Easy’s Dog Shelter is a space I created for people who want clear, calm guidance about life with dogs. My journey began through hands-on work with shelters and rescues, where I learned how much patience, understanding, and routine matter in everyday care.

    Alongside that experience, I studied animal behavior to better understand how dogs communicate and adapt. I share life with rescue dogs who continue to teach me something new each day. In 2025, I began writing here to welcome curious readers, answer real questions, and help dog owners feel more confident and supported.