Spaying a female dog is a common and important procedure that helps to prevent overpopulation of dogs. It is also known as an ovariohysterectomy. This is a surgical procedure that removes the ovaries and uterus of the female dog. Not only does it help to prevent overpopulation, but it also helps to prevent certain types of cancers and other diseases. However, after the procedure is complete, the dog is left with a small scar that can be difficult to identify when the dog is grown. This is why many people opt to get a spay tattoo for their female dog.