01/27/2025
Spaying your pet before her first heat offers the best protection from these diseases.
A uterine infection is called a pyometra and is caused by the uterine walls thickening with every heat cycle. Eventually they can get infected by bacteria and filled with pus. The thickening walls prevent the uterus' muscles from squeezing together to push out the fluids and bacteria. During a heat cycle, white blood cells cannot enter the uterus. Therefore, when the bacteria grow, there is nothing to stop it. Not every intact female gets a pyometra, but there is always a chance.
Breast tumors in dogs and cats, also known as mammary tumors, are abnormal growths in the mammary glands. These tumors can be prevented by having your pet spayed prior to their first heat. Again, not every female pet will develop breast tumors, but there is always a chance.