Pyometra
Digg this article
Pyometra is a medical condition in which pus is accumulated in the uterus of a dog. It usually happens after the animal has gone through a heat cycle without becoming pregnant. Hormonal abnormalities result in the uterine lining becoming thick. When this happens, fluid begins to accumulate within the thickened walls, infection develops and the uterus fills with pus. In certain conditions, namely if the cervix is open, the pus will drain from the dog through the vagina and is an unpleasant, but not especially life-threatening concern. If the cervix is closed, however, the pus will be trapped inside the uterus and cannot drain outside the body. At this point, the infection rapidly becomes a threat to the dog's life. [...]