Why Spay & Neuter

What spay/neuter is important for your dog

The surgery has many benefits other than preventing unwanted puppies.

  • Spayed before her first heat, a female has almost zero chance of getting mammary gland cancer. After the first heat, the chance is only 7 percent; 25 percent after the second heat. Past that (even far, far past), spaying will still reduce risk.
  • Spaying prevents pyometra, a common, life-threatening infection of the uterus. Typically, it’s middle-aged (or older) females who get it, about six weeks after a heat cycle. The treatment is an emergency spay.
  • Neutering prevents some cancers of the testicle and anus, and it helps prevent some significant prostate problems in males.
  • The best part is that after neutering, male pups change from juvenile delinquents into pillars of the community (although some will still lift a leg on the pillar). Males are less aggressive without that testosterone jamming up their brains, they’re less likely to roam (and they don’t act like such escape-artist Houdini Hounds in order to get out), and they’re less likely to hump and mark. You’ll still see some of this behavior, mind you–just less of it.

What it won’t do is send your female dog into menopause (another myth). Dogs don’t go into menopause. Ever.

When it’s time to spay or neuter your dog

Puppies can be spayed or neutered any time after eight weeks of age. Some people wait until just before the dog becomes sexually mature, sometime around six months of age, depending on the breed.

Here are some things to consider when scheduling the surgery:

  • Hormones affect body structure. If you want your dog to be as big and manly as possible, with a build like Arnold Schwarzenegger, wait a bit to neuter. If you don’t like the more exaggerated features, neuter earlier.
  • Females will also have a slightly more feminine appearance if spayed later.
  • The dog will be exactly the same functionally whether you do it early or not.
  • Surgery is safer when the dog is young, although smaller patients have a higher risk of problems with hypothermia and hypoglycemia when anesthetized.
  • Younger patients have immature immune systems, which can be a concern if postsurgery infections or other problems develop.
  • Don’t put it off and assume you can just isolate your dog from any romantic encounters. Mistakes (open doors, broken fences) happen, and there are already too many unwanted pets in the world.

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