what causes pyometra in dogs.
Causes of Pyometra. Pyometra is an infection that is caused by Escherichia coli, which is a bacterium that is normally present in healthy amounts in the uterus of the dog. When there is an overgrowth of the Escherichia coli bacteria, the uterus infection occurs; this may be 2 months after the estrus.
Search form. Pyometra in dogs. Pyometra is a very serious infection of the womb, also known as the âuterusâ. Itâs caused by the womb filling with pus and, if left untreated, it can lead to kidney failure, toxaemia, dehydration and, in some cases, death. Usually the only cure once the pet has developed pyometra is emergency surgery to remove their womb.