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Pyometra

Also known as: Uterine infection

Quick answer

A life-threatening uterine infection in unspayed female dogs and cats, often developing weeks after a season. Open pyometra may show discharge; closed pyometra is especially dangerous. Emergency — unspayed females with these signs need urgent vet care.

Definition

A life-threatening uterine infection in unspayed female dogs and cats, often developing weeks after a season. Open pyometra may show discharge; closed pyometra is especially dangerous.

Symptoms

  • Lethargy and reduced appetite
  • Increased thirst and urination
  • Vomiting
  • Vaginal discharge (may be pus-like)
  • Swollen abdomen

When to see a vet

Emergency — unspayed females with these signs need urgent vet care. Pyometra requires surgery in most cases.

Related guides & tools

Frequently Asked Questions

What is Pyometra?
A life-threatening uterine infection in unspayed female dogs and cats, often developing weeks after a season. Open pyometra may show discharge; closed pyometra is especially dangerous.
What are the symptoms of pyometra?
Common signs include Lethargy and reduced appetite, Increased thirst and urination, Vomiting, Vaginal discharge (may be pus-like). This is not a complete list — individual pets vary. See linked guides for fuller context.
When should I see a vet about pyometra?
Emergency — unspayed females with these signs need urgent vet care. Pyometra requires surgery in most cases.