This is a much more complicated issue than the OP's post would suggest, both in terms of population management and individual animal health.
I second everything Dr. Langlois said and there are many other considerations in addition to the ones he raises. I am presenting two lectures on these topics at VMX in January...come and hear more about this discussion if you'll be in Orlando!
But, those of us in the animal welfare/sheltering world ESPECIALLY need to NOT be messaging that S/N is bad for dogs or cats while shelters are drowning in unwanted pets and the free-roaming populations of dogs and cats are exploding around the world. There is no settled causative effect between any specific health problem and traditional S/N at any age (correlation is not the same as causation), especially in mixed breed dogs. Conversely, a number of negative behavioral and life-threatening health effects of leaving gonads in pets are extremely well-documented.
As a note, most competent veterinary surgeons are capable of performing vasectomy, hysterectomy or any other of the proposed "novel" gonad-sparing procedures (the long-term health impacts of which are completely unstudied at this time...same with HRT). We actively choose to provide traditional S/N (gonadectomy) because we believe it is in the best interest of both individual animal health and population management. This is not a "vet training" issue.
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Rachel Powell DVM
Director of Surgery
Greenhill Humane Society
Eugene, OR
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Original Message:
Sent: 12-19-2025 02:23 PM
From: Mary Murray
Subject: What are your thoughts on Pet's Health via Hysterectomy and/or Vasectomy?
I converse regularly with a "HEALTH" advocate and touching on the topic of pets, it is said to be a healthier option for a K9's and/or Feline's to have a hysterectomy and/or vasectomy! This method eliminates growth and hormone issues, torn ACL's and other ailments from aging, etc! I believe this to be TRUE, however, since us humans, have let the pet over-population get "out of control", we are stuck with early Spay/Neuter, if any at all? We should NOT be making spay/neuter the only standard, yet what are our options, and what are your thoughts? By now, I would think our technology is pretty advanced, if so, I haven't heard much about it and its pro's and con's as entering as an alternative to society! Are we even headed in that direction, anywhere? Hmmm.....
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[Mary Murray] LadywiththeHuskies
[Founder, CEO and President
[Greene Animal League
[Greeneville, TN
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