Female Dog Leaks Clear Fluid – 9 Common Reasons & Treatments

Some pet owners may be concerned when their female dog leaks clear fluid.

Understanding the reasons behind this can help maintain our beloved canine companions’ well-being.

This common issue can stem from various sources, like natural bodily processes, underlying medical conditions, or external factors.

Let’s explore the potential causes, signs, common symptoms, and possible treatment options.

9 Reasons Why A Female Dog Leaks Clear Fluid 

female dog leaks clear fluid

Female dogs can leak clear fluid due to bladder storage dysfunction or urinary tract infections (UTIs). Besides, hormonal changes, allergies, vaginitis, and pyometra can be the reasons.

Monitoring your dog’s health and consulting with a veterinarian if you notice any concerning changes in the discharge is essential for her well-being.

Bladder Storage Dysfunction

Bladder storage dysfunction is a potential reason behind a dog leaking clear fluid.

This condition arises when the bladder muscles fail to contract and relax properly, leading to urine leakage.

Various factors can contribute to this dysfunction, including urinary tract infections, hormonal imbalances, or neurological issues.

Urinary Tract Infections (UTIs) 

Urinary tract infections (UTIs) might be another reason why female dogs may experience clear fluid leakage.

These infections typically occur when bacteria infiltrate the urethra and enter the bladder. As a result, it triggers inflammation and infection.

Note that older spayed female dogs are particularly vulnerable to UTIs. Other common symptoms of a UTI in dogs include:

  • Frequent urination
  • Straining during urination
  • The presence of blood in the urine

Besides, some dogs might hump people or objects to alleviate the discomfort associated with a UTI, a lesser-known sign you should notice.

Hormonal Issues

Hormonal changes can be among the culprits behind an older female dog leaking clear fluid.

These fluctuations often coincide with periods of heat or estrus, where the body’s hormonal activity increases. Thus, a rise in vaginal discharge during these times is entirely normal.

However, if the discharge becomes excessive or carries a strong odor, it may indicate a bacterial infection or medical concerns.


Excitement can also make a dog experience the leakage of clear fluid. Like humans, dogs can produce reproductive fluids when stimulated or highly excited.

This occurrence is particularly prevalent in intact females who have not undergone spaying.

Female dogs sometimes encounter situations that trigger enthusiasm or arousal. For example, playtime or interaction with other dogs can trigger clear fluid release.

This natural response is a normal physiological reaction and is nothing to be overly concerned about.

Inflamed And Irritated

Why is there weird liquid coming from my dog? It might be due to allergies or irritation. Allergies can inflame and irritate the skin, leading to more fluid production.

Common dog allergies include foods, pollen, dust mites, and grooming products.

When these allergens affect your dog, skin reactions and the release of clear fluid are to be expected.

Identifying this issue is crucial, as addressing the allergy or irritation can ease discomfort and reduce the discharge.


Vaginitis, or vaginal hyperplasia, usually happens in female dogs that have not been spayed and is why they might leak clear fluid.

It’s an inflammation in the vagina and can happen because of:

  • Infections
  • Structural issues
  • Viruses, injuries, tumors, medication
  • Hormonal problems
  • Foreign objects

Signs of vaginitis include:

  • Unusual, watery discharge
  • Redness
  • Discomfort when peeing
  • Excessive licking of the area
  • Scooting on the floor
  • Attracting male dogs
  • Struggling while urinating

Puppies can get it, too, but it usually goes away after their first heat. If left untreated, more issues, like skin and urinary infections, will arise.

Vaginal Discharge During Heat Cycle Stages

Why is my dog leaking clear fluid? This could stem from the vaginal discharge during a dog’s heat cycle. There are two stages: proestrus and estrus.

In proestrus, lasting 5-9 days, dogs have a reddish-brown, bloody discharge that gets heavier, with vulva swelling.

In estrus, lasting 9-20 days, they typically have whitish or watery pink discharge, less abundant but thicker.

After estrus, discharge decreases. White discharge before heat may indicate hormonal changes or issues like vaginitis.

If it remains opaque white during the heat cycle or even silent heat, watch for purulent signs and check your dog’s overall health.

Spayed dogs can also have similar discharge due to ovarian remnant syndrome, derived from a remaining ovary fragment post-spay.

Pregnancy Signaling Labor

Clear fluid leaking from a pregnant female dog can signal impending labor.

It often means the mucus plug, which safeguards the womb during pregnancy, is about to be expelled. It usually happens shortly before labor, about several hours to a week.

The mucus plug is typically clear or white, resembling “egg white” in consistency.

However, if it comes out more than a week before the due date, it could indicate premature labor. Discharge with a foul odor and a green hue might signify a problem like a dead fetus.

Bloody discharge marks the start of labor, turning black or green during and after it.

Post-pregnancy, a white or purulent discharge could imply issues like metritis or an infected uterus.

Some dogs may have an ongoing bloody discharge for weeks or even years if their uterus doesn’t heal properly, known as subinvolution of placental sites.

Uterine Infections (Pyometra)

Uterine infections, or pyometra, can also lead to clear liquid in female dogs. However, the situation can quickly worsen.

These infections arise when bacteria enter the uterus through the cervix of an unspayed female dog.

As the infection grows, it triggers swelling in the uterus and the production of discharge filled with pus or blood. Recognizable symptoms of pyometra include:

  • Reduced appetite
  • Vomiting
  • Fever
  • Lethargy
  • Increased thirst and urination

What Are Common Treatments For Female Dogs Leaking Clear Fluid? 

What Are Common Treatments For Female Dogs Leaking Clear Fluid 

Vaginal Inflammation Management

When clear fluid leakage is due to vaginal inflammation or vaginitis, treatment often involves:

  • Antibiotics
  • Antifungal medications
  • Topical creams

These treatments can help address the underlying infection or irritation. Besides, maintaining good genital hygiene is also important to prevent further complications.

Pyometra Resolution

Pyometra, a serious uterine infection, may require emergency surgery to remove the infected uterus (spaying) to save the dog’s life.

In some cases, hormonal therapy or antibiotics may be the initial treatment. However, surgical intervention is often necessary to fully resolve the condition.

Removal Of Foreign Objects

A foreign object may cause clear fluid leakage, such as a grass seed or a retained mating device.

Thus, the veterinarian may need to perform a procedure to remove the foreign object safely from the genital tract.

Correction Of Anatomical Issues

When anatomical issues like bladder or vaginal prolapse is the culprit behind the clear fluid leakage, surgical correction may be required to restore normal function and alleviate symptoms.

Estrous Cycle Management

Clear fluid discharge is a normal part of reproduction during the estrous cycle.

Management may focus on behavior control and monitoring to prevent unwanted pregnancies. Spaying the dog can eliminate the estrous cycle and its associated discharge.

Metritis Therapy

Treatment for metritis, a uterus infection, typically involves antibiotics and sometimes supportive care like intravenous fluids and pain management.

In severe cases, your dog might need surgical intervention.

How To Prevent Clear Fluid Leaking Problems In Dogs?

Preventing clear fluid leaking problems in dogs primarily revolves around proactive measures to maintain their overall health.

A healthy diet, regular exercise, and routine veterinary check-ups go a long way in keeping this issue at bay.

Providing your dog with a balanced and nutritious diet tailored to their needs supports their immune system and overall well-being.

Regular exercise helps with weight management and promotes good circulation and muscle tone.

Moreover, it’s best to have routine vet check-ups to enable early detection of any health issues.

They can ensure timely intervention and maintain your cherished pet’s optimal health.


my dog leaking clear fluid

Why Is My Dog Leaking Clear Fluid From His Mouth?

It could be due to several reasons related to irritation or ingestion of foreign substances.

Firstly, it’s essential to check your dog’s mouth for any foreign objects that may be stuck, causing discomfort and excessive saliva production.

Dogs can explore and ingest items that can become lodged in their mouths. Besides, your dog might have ingested something toxic, like a household cleaner or detergent.

They can lead to irritation and excessive salivation.

The irritation and discomfort can result in clear fluid dripping from the dog’s mouth in both scenarios.

Is It Dangerous If Female Dogs Leak Clear Odorless Fluid?

No. Clear, odorless fluid from a female dog’s vulva is usually normal and helps keep things clean.

But if it becomes excessive or there are changes in color or smell, it might be a clinical sign of an issue like an infection or urinary problem.

These can be dangerous, especially uterine infections. 

Should I Consider Spaying My Female Dog?

Yes, you should consider spaying your female dog. It helps prevent unwanted pregnancies and reduces the risk of infections, cancers, and hormonal imbalances.

Spayed dogs tend to live healthier and longer lives. Once your dog develops health issues later, surgery might be needed.

If this is the case, it’s best to encourage your dog to urinate after the surgery.


In summary, when a female dog leaks clear fluid, it may be due to infections, hormonal changes, and bladder issues.

Some causes, like excitement or the heat cycle, are typically harmless.

On the other hand, such as urinary tract infections or pyometra can be more serious and require prompt veterinary attention.

Monitoring your dog’s health and recognizing any unusual changes is essential.

Spaying can also help prevent certain issues like uterine infections and unwanted pregnancies, offering long-term health benefits.


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Hi I am Mitchell. Dog Growth is a blog about dog caring and training where I share my experiences to my community. Hope you enjoy it!

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