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Answers from vets about your cat:

Why Should I Spay My New Kitten?

Reviewed by Dr. Alexis Seguin, DVM, MS, DACVIM on Wednesday, April 29, 2015
Posted March 18, 2015 in Cat Surgery A-Z

Dr. Phil Zeltzman is a traveling, board-certified surgeon in Allentown, PA. His website is He is the co-author of “Walk a Hound, Lose a Pound” (

Kelly Serfas, a Certified Veterinary Technician in Bethlehem, PA, contributed to this article.

Besides vaccinations and deworming, spaying a kitten is a strong recommendation you may hear from your family veterinarian. Your question may then be, why should you spay your kitten?

Happy kittenDefinition of “spay”
Spaying a kitten means removing the ovaries only (ovariectomy) or removing the ovaries and the uterus (ovario-hysterectomy). Most U.S. veterinarians perform an ovario-hysterectomy. Spaying a kitten, as long as certain precautions are taken under anesthesia, is considered safer than spaying an adult because kittens tend to recover more quickly. Most veterinarians recommend spaying kittens before 6 months of age.

Spaying to prevent more kittens
Spaying will prevent your feline from bringing more kittens into the world. Breeding a cat is a big responsibility that should not be taken lightly. Breeders should be knowledgeable about genetics, breed standards and how to handle a pregnancy. Some cats can have a litter of 4, 6 or even more kittens! Are you prepared for that amount of dedication?

Kittens can be a lot of work, and cost a lot of money. Extra veterinary care during pregnancy and for the kittens themselves should be expected. Although rare in cats, there are possible complications that may require a C-section. Although it may seem costly to have your cat spayed, it will actually cost far less than an emergency C-section.

Spaying to prevent pyometra
Not spaying a kitten can lead to pyometra later in life, i.e. an infection of the uterus which causes it to fill up with pus. Murphy’s Law says that a pyometra is more likely to happen after hours (on an emergency basis) because early signs can be vague until your cat becomes very sick. Once again, it is far less expensive and better for your kitten to spay rather than to take a chance with emergency surgery for pyometra. In addition, pyometra can cause serious kidney disease or could even be deadly.

Spaying to prevent mammary tumors
Not spaying a kitten before the first heat cycle increases the risk of mammary or breast tumors. The more heat cycles a cat goes through, the higher the risk. Breast tumors are much more aggressive in cats than in dogs (one of the main reasons why it’s so critical to spay cats). Close to 99% of mammary tumors are malignant, i.e. cancerous in cats, while only about 1% are benign. Either way, mammary tumors require surgery which could be costly and is always invasive. Again, preventing the problem is much easier and cheaper than treating it.

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Dr. Phil Zeltzman is a board-certified veterinary surgeon and author. His traveling practice takes him all over Eastern Pennsylvania and Western New Jersey. You can visit his website at, and follow him at