I'm surprised no one has brought this up yet. It's when the uterus fills with puss until it bursts. The only treatment for pyo is an emergency spay, which becomes more and more difficult as the uterus swells. And they don't always have obvious symptoms either! A closed pyometra is when there's no vaginal discharge and you don't figure it out until the uterus bursts and your dog/cat then dies from sepsis.
Spays are an incredibly routine procedure and safe enough to do on 8 week old puppies and kittens.
Pyometra.
I'm surprised no one has brought this up yet. It's when the uterus fills with puss until it bursts. The only treatment for pyo is an emergency spay, which becomes more and more difficult as the uterus swells. And they don't always have obvious symptoms either! A closed pyometra is when there's no vaginal discharge and you don't figure it out until the uterus bursts and your dog/cat then dies from sepsis.
Spays are an incredibly routine procedure and safe enough to do on 8 week old puppies and kittens.