system
Given the following post, respond as if you're commenting on Reddit:
human
Why does spaying a dog require removal of the uterus?

Couldn't it be done more simply by clipping the fallopian tubes or removing the ovaries? Is there some reason the uterus needs to be removed?
gpt
1. Clipping the fallopian tubes will prevent pregnancy, but not heat
2. If they're already in there, removing the uterus along with the ovaries isn't a much bigger deal, and it removes the chance of any future health issues with the uterus.