What made you want to look up low-pressure? Please tell us where you read or heard it (including the quote, if possible).
While spaying is traditionally recommended for kitties between 4 and 6 months of age, spaying as young as 8 weeks old is considered safe, according to Cat Channel. Many animal shelters actually spay kitties prior to adopting them out at this age.
Cats can become pregnant within months of giving birth. Although a cat can be spayed at any point, it is best to wait until the litter of kittens is weaned. The mammary glands and uterus will be much small then, making the spay easier and safer. Specifically, six to ten weeks after giving birth your cat can be spayed..ased on some internet searches, mother cats can be spayed about 2 weeks after the kittens are weaned. So when the kittens are 6-10 weeks old would be about right. Linus (Dreamboat #72a) answered on 4/25/11.