Here's why:
* Spaying removes the ovaries, which produce hormones. This eliminates the need for hormone replacement.
* Hormone replacement therapy is typically used for conditions related to hormone deficiencies. Spaying does not create a hormone deficiency.
* There are some potential risks associated with hormone replacement therapy. These risks outweigh any potential benefits for spayed cats.
However, there are other considerations for spayed cats:
* Changes in metabolism: Spaying can lead to changes in metabolism, which might increase the risk of obesity. A healthy diet and exercise are important.
* Urinary tract issues: Some spayed cats may develop urinary tract issues. These issues are not related to hormone deficiency and can be managed with dietary changes, increased water intake, and medication if needed.
It's important to discuss any concerns you have about your cat's health with your veterinarian. They can provide the best advice for your individual cat.