How soon after my cat has given birth can I have her spayed?
From the Editors of The Daily Cat
If you live with a cat, having her spayed (or him neutered) is one of the most responsible actions you can take. With so many orphaned and homeless kittens available, preventing unwanted pregnancies is extremely important. And having your cat spayed or neutered will help curtail roaming, fighting and other undesired behaviors that can lead to injury or even death.
You should first consult with your veterinarian for the ideal time to have your cat spayed. If all health parameters are in order, the vet may recommend the procedure near weaning (three-to-four weeks after delivery) in order to prevent another pregnancy. In some cases the procedure can be done earlier, but again, the matter should be discussed with your vet.
If your cat is not spayed, she will be more likely to develop mammary tumors and uterine infections. Early spaying is key in preventing these, and other, health problems. It is not important for cats to have a litter of kittens first, as this offers absolutely no health or behavioral benefits. Many veterinarians recommend spaying and neutering at an early age, prior to the first heat cycle.