06/06/2026
When routine surgery becomes life saving.
No surgery should be regarded as routine. Still, neuterings are often called routine as we do them so frequently.
Female dogs can get severely ill later on in life if they are not spayed (neutered). Their womb (uterus) can get infected, usually that happens shortly after they had a season, sometimes a few weeks later, sometimes out of the blue when they have not had a season for a while.
It's called pyometra and can be life threatening.
The uterus fills up with pus, they literally have an abscess inside their tummy. The pyometra can be open = the cervix is open and they start discharging again. This discharge can range from light blood to brown blood to downright pus.
Sometimes the pyometra is closed = the cervix stays closed and the pus cannot flow out. This can get really dangerous as that pyo can burst, causing life threatening infection (peritonitis).
But even without the uterus bursting, these dogs feel very sick and are very sick. Imagine carrying a huge abscess inside!
There are different ways of treating it, but eventually they all have to be spayed. And often we have to spay them as soon as we diagnose the pyo while they are ill.
We had a pyo the other day.
15kg dog with a 1.1kg heavy pus filled uterus!
A normal dog's uterus weighs only a few ounces or grams (15 to 30g, that's 2-4 mini celebrations!), it's maybe as thick as a pencil and about 15cm long (6 inches).
This pyo was huge.
1.1kg (2 1/2 pounds) heavy, the uterus was 5cm (2 inches) in diameter and at least 50cm long (almost 2 feet!)!
Surgery went well, our patient recovered beautifully, tucked into her food straight away and got VIP Phoebe cuddles at reception!
WARNING - explicit photos