There is an increased risk of pyrometra in intact female dogs. (professorshouse.com)
My dog had pyrometra surgery about 3 days ago she is eating and going to the bathroom normal but she has been shaking and panting really bad. (wagwalking.com)
It also eliminates pyrometra, a very severe infection of the uterus that if not treated in a timely manner leads to death. (actorsandothers.com)