Pyometra is the infection in the uterus (womb) of a female dog. It is caused by hormonal changes in the body that fill the uterus with pus. Pyometra is a life-threatening condition that requires ...

What Causes Pyometra in Cats? Pyometra is caused by bacteria entering your cat's uterus. Normally, the cervix is closed, which helps prevent bacteria from getting into the uterus. However, when your ...