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What anesthesia is used for spay/neuter surgery and how does it work?

Updated on September 23, 2025

Hey I'm writing a paper about spay and neutering and I wanted to know what type of anesthesia you would use for that, why, and maybe a little about what you do and why during the procedure.

1 Answer

Most Helpful Answer

Kevin Sanada, DVM

Answered By Kevin Sanada, DVM

Veterinarian

Published on November 27, 2017

That is a great deal of information that you need, so I'll give you a couple of links with some good information about spay and neutering.

The type of anesthesia used depends on the animal (dog or cat) and their particular level of health and sometimes breed. Generally every animal is given a premedication injection that contains a sedative and pain control. The next drugs given are known as an induction agent, which is usually given intravenously (IV) and will cause the animal to go to sleep. The general anesthesia (sleep) is then maintained by an anesthetic gas. After the procedure is done, a post-op medication is usually given to help with pain control.

Below are some links to articles that explain why we do the procedure and how it is done:

https://www.aspca.org/pet-care/general-pet-care/spayneuter-your-pet

http://www.vet.cornell.edu/fhc/Health_Information/spayneuter2.cfm

https://www.mspca.org/pet_resources/ask-a-vet-all-you-need-to-know-about-spayneuter-surgery/

I hope that helps and all goes well with your paper.
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