Pyometra is a serious and potentially life-threatening infection of the uterus, characterized by inflammation and the accumulation of fluid (pus) within the uterine cavity. This condition is most commonly found in older, unspayed female dogs. It is typically caused by bacterial infection or hormonal imbalances that trigger the thickening of the uterine lining (endometrial hyperplasia) and excessive secretion of fluids, creating an ideal environment for bacteria to grow.
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