TL;DR: Thick, pus-like discharge from a dog’s vulva is a life-threatening emergency often caused by pyometra, a severe uterine infection. You must contact an emergency veterinarian immediately to prevent fatal complications like sepsis.
What does thick, pus-like discharge from my dog's vulva mean?
Thick, creamy, or foul-smelling discharge from a dog's vulva is typically a sign of a severe infection. In unspayed female dogs, this is most frequently a symptom of pyometra, a condition where the uterus becomes filled with bacteria and pus. This is a very serious medical condition that requires immediate intervention to prevent the infection from spreading to the bloodstream.
Is thick discharge from my dog's vulva a veterinary emergency?
- Contact an emergency veterinarian immediately as the urgency level for this symptom is high.
- Seek help specifically if your dog is not spayed, as pyometra can become fatal within hours due to rupture or sepsis.
- Get an evaluation even if your dog seems to be acting normally, as internal damage may already be occurring.
How does taking a photo of the discharge help with my dog's triage?
- Provide a clear photo of the discharge and the vulva area for clinic or telehealth services.
- Enable the veterinary team to quickly identify the color, consistency, and amount of discharge.
- Help the staff determine the severity and prepare necessary diagnostic tools before you arrive.
Clinical Context (Merck Veterinary Manual)
In dogs, a thick, purulent (pus-containing) vaginal discharge is often associated with pyometra, a serious uterine infection. When the cervix is open, a purulent vulvar discharge, often containing blood, is present; however, when the cervix is closed, there may be no discharge, and the enlarged uterus may cause abdominal distention. Affected animals may exhibit lethargy, dehydration, and uterine enlargement. While fever is not always present, signs can rapidly progress to shock and death, making prompt veterinary intervention essential.
Chapter: Reproductive, Urology
Source: The Merck Veterinary Manual, 11th Edition (Page 1398)