New WSAVA Guidelines: Rethinking Spaying and Neutering for Dogs

Should I Neuter/Spay My Dog?

Having listened to an episode of Edition Dog Podcast (which you can find the link at the bottom of this page) I hadn’t realised the guidelines had recently changed. After years of scientific research it seems now that spaying or neutering your dog can have serious health implications. That’s not to say that you shouldn’t, but you should have the conversation with your vet. I also learnt that in Norway it is illegal to Neuter or Spay your dog unless for specific and or medical reasons.

Below is a short summary of the Podcast…..

For years, spaying and neutering dogs was considered standard practice. But the World Small Animal Veterinary Association (WSAVA) has recently updated its global guidelines—and the advice might surprise you.

What’s New?
WSAVA now advises against routine spaying and neutering for most dogs. After reviewing the latest scientific research, they’ve found that these procedures—especially when done early—can lead to serious long-term health risks, including certain cancers, joint disorders, urinary issues, and hormonal imbalances.

So, Should You Neuter / Spay Your Dog?
Not necessarily. The new guidelines emphasize that spaying and neutering should only be done when there’s a clear medical or behavioural reason—or in cases where preventing unwanted litters is absolutely necessary and other options aren’t feasible.

What to Consider Instead:
Keep your dog intact, if they’re healthy and not at risk of accidental breeding.
Work with your vet to assess your dog’s individual situation—breed, age, lifestyle, and environment all matter.
Explore alternatives like responsible supervision, secure fencing, and hormonal contraceptives (where appropriate).

Why It Matters
This shift in guidance puts your dog’s long-term health and wellbeing first. While neutering may still be the right choice for some dogs, it’s no longer considered the best option for all.

The Bottom Line
The idea that “every dog should be spayed or neutered” is now outdated. Instead, informed, case-by-case decisions are the way forward. If you’re unsure what’s best for your pup, your vet is the best place to start.