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Vaginitis in Dogs

What is Vaginitis in Dogs?

Vaginitis in dogs refers to inflammation of the vagina, characterized by redness, swelling, and discharge. While puppies typically experience this condition as a harmless occurrence that clears up on its own after their estrus (heat cycle), older dogs often require treatment to address it.


Symptoms of vaginitis in dogs may not always be evident or may manifest intermittently. However, if your dog does display symptoms, they may include:

  • Discharge from the vulva, typically cloudy and white to yellow in color.
  • Licking the vulva.
  • Attraction of males.
  • Frequent urination or attempted urination.
  • Irritation of the skin around the vulva due to excessive licking.

Dogs with vaginitis generally maintain a playful and happy demeanor despite exhibiting one or more of these symptoms. Should you observe additional indications such as lethargy, weakness, loss of appetite, or vomiting, it is crucial to promptly contact your local animal hospital, as these could signal a more serious underlying issue.


The causes of vaginitis in dogs encompass factors that lead to inflammation, irritation, or a moist environment. Primarily, vaginitis often results from a bacterial infection, as bacteria flourish in warm, moist areas like the urogenital tract. Additional causes include:

  • Structural abnormalities of the vulva or urinary tract, such as a hooded vulva concealed by surrounding skin, facilitating bacterial growth.
  • Viral infections, including Canine Herpesvirus.
  • Presence of foreign materials in the vagina, such as dust or dirt.
  • Medications like hormone-altering or hormone-producing steroids, creams, etc.
  • Cancer.
  • Certain conditions that disrupt sex hormone balance.


To diagnose vaginitis in dogs, veterinarians employ several diagnostic methods. If your dog exhibits vulvar discharge or other symptoms, the veterinarian will assess whether simple vaginitis is the cause or if there’s an underlying issue, such as an infection or urinary tract abnormality. This evaluation begins with a physical examination.

During the examination, the veterinarian inspects the vulvar area for signs of estrus and infection. They may also collect a sample of the discharge for microscopic analysis to detect bacterial infection. Blood work may be recommended to rule out more serious conditions, while imaging tests like X-rays or ultrasounds may be conducted to examine the urinary tract.

In certain cases, more advanced diagnostics like vaginoscopy, which involves using a small scope with a camera to examine the genital tract, may be necessary. The veterinarian might also collect samples of discharge for bacterial culture or obtain tissue samples for pathological evaluation if abnormalities are observed.


Treating vaginitis in dogs varies depending on the severity and underlying cause, if identified. For puppies yet to undergo puberty, the condition often resolves spontaneously. However, you can assist by maintaining cleanliness and dryness around the vulva using wet, unscented baby wipes, particularly after outdoor activities or urination.

In more serious cases, antibiotics or surgery may be necessary. Antibiotics are typically prescribed to address bacterial infections in the vulva, vagina, or urinary tract. If an anatomical issue is responsible, surgical intervention may be required to rectify it and prevent future occurrences of vaginitis.

Recovery and Management of Vaginitis in Dogs

The duration of vaginitis episodes in dogs can vary from days to months, contingent upon the underlying cause. While puppies often see resolution after their initial heat cycle, this isn’t always the case. Structural abnormalities may predispose your puppy to recurrent episodes and flare-ups. Recognizing whether your pet has a hooded or inverted vulva can aid in assessing the risk of recurrence. Maintaining cleanliness and dryness around the vulva area is beneficial, as is preventing your dog from licking the area by using a recovery cone or e-collar.

Vaginitis in Dogs FAQs

Will vaginitis in dogs clear up without treatment?

Uncomplicated vaginitis in puppies can resolve spontaneously within a few weeks to months, or even faster with proper hygiene care. However, it’s important to note that what appears to be vaginitis could potentially signify a more serious condition. Therefore, always consult your veterinarian and have the issue evaluated.

Does vaginitis cause pain in dogs?

Vaginitis can be irritating and uncomfortable for dogs, and persistent licking or chewing of the affected area may exacerbate the condition. If you observe any swelling, irritation, or signs of discomfort, it’s essential to contact your veterinarian promptly.

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