Signs of Pyometra in Cats

Signs of Pyometra in Cats

How do you know if your cat has pyometra? Sometimes the symptoms are straightforward, but at other times the disease can be tricky to diagnose. Knowing the signs of this condition can, quite literally, save your cat’s life.




Pyometra is defined as an accumulation of pus within the uterus, which can develop because of the hormonal, anatomical, and physiological changes that occur after a cat has gone through a heat cycle but does not become pregnant. Bacteria then take advantage of the situation, resulting in a potentially fatal infection.




pyometra in cats Broken Arrow OKSome cats will show no signs, or may show vague clinical signs like lethargy, fever, dehydration, and poor appetite, even if they are suffering from very advanced disease.

Vomiting may also be present. Because the signs can be mild and/or ambiguous, abdominal imaging (x-rays and/or ultrasound) is sometimes the only way to definitively diagnose or rule out cases of this condition in cats.

If a cat with pyometra has an open cervix, pus (often tinged with blood) will drain from the cat’s vagina, but fastidious feline groomers often clean it away before owners can observe it. Because the pus has a way to get out of the body, these cats may not show many signs of systemic illness.

In comparison, when a cat with pyometra has a closed cervix, the pus will accumulate within and distend the uterus, leading to pain, abdominal enlargement, and more obvious signs of illness. The uterus may eventually rupture, leading to peritonitis—infection of the abdominal cavity—which is fatal without aggressive treatment.

While increased thirst and urination are classic symptoms of pyometra in dogs, these same clinical signs are rarely observed in cats.

Read more about pyometra in cats and other cat health issues at :