
02/23/2025
People often ask us why we recommend spaying/neutering dogs. The obvious reason is so that you don’t end up with unwanted puppies.
Another, sneakier, reason is that it prevents your dog from getting a uterine infection called pyometra. That’s Latin for pus in the uterus…
Female dogs usually come into heat approximately every six months, and that heat cycle lasts about three weeks, from start to finish. During the heat cycle, if she is bred, s***m get up into the uterus to do their job and make puppies. There is a potential for bacteria to get up into that uterus as well, unfortunately. If that happens, you won’t really see anything different… initially…
Eventually, as the infection gets worse, anywhere from a couple of weeks to a month or so after her heat cycle ended, she will begin to show signs of this infection. What will she look like? She could be drinking/urinating much more than normal, vomiting, off her food, and possibly have a nasty discharge from her v***a (girl parts 😉). That makes it easy to make the diagnosis, and is called an ‘open pyometra’. It get tricky when the pus is trapped in the uterus without any obvious discharge. Then X-rays and blood work can help us.
This X-ray shows the enlarged uterus taking up space in the abdomen, where it risks rupturing. We take the dog to surgery to remove the pus filled uterus and usually they have a complete recovery. That second picture is what that uterus looks like after removal! Yuck
The moral of this story is, if you have an intact female dog, always keep track of when her heat cycle happens. And if she starts acting sick within a few weeks, bring her in for an exam. And the best prevention is to have her spayed.