Delayed spaying and neutering in dogs

Our dedication to the well-being and optimal life of your pups extends beyond conventional practices. We are passionate advocates for the scientific principles that support the concept of delayed spaying and neutering in dogs.

Over the years, an expanding body of research has reinforced the advantages of delayed spaying/neutering, and at Willowcreek, we take a proactive stance on this matter.

Benefits of Late Spaying and Neutering:

  1. Delayed spaying and neutering in dogs Musculoskeletal Health: Delaying spaying/neutering allows for the full closure of growth plates, contributing to better musculoskeletal health and reducing the risk of orthopedic issues in adulthood.
  2. Reduced Risk of Certain Cancers: Studies suggest that delaying spaying/neutering may reduce the risk of certain cancers, including osteosarcoma, hemangiosarcoma, and mast cell tumors.
  3. Decreased Incidence of Joint Disorders: Late spaying/neutering has been linked to a lower incidence of joint disorders, such as hip dysplasia and cranial cruciate ligament tears.
  4. Maintained Hormonal Balance: Allowing dogs to reach sexual maturity before spaying/neutering helps maintain the natural hormonal balance, promoting overall well-being.
  5. Behavioral Benefits: Late spaying/neutering may positively impact behavioral development, contributing to better temperament and reduced aggression in some cases.


Scientific Articles Supporting Delayed Spaying and Neutering:


  1. “Long-Term Health Effects of Neutering Dogs: Comparison of Labrador Retrievers with Golden Retrievers” – J. A. Hart, et al. (Published in PLOS ONE) This study explores the potential health implications of early neutering and suggests differences in health outcomes between early-neutered and non-neutered dogs.
  2. “Evaluation of the risk and age of onset of cancer and behavioral disorders in gonadectomized Vizslas” – Benjamin L. Hart, et al. (Published in the Journal of the American Veterinary Medical Association) Examining the risks associated with spaying/neutering, this research delves into the age of onset of cancer and behavioral disorders in gonadectomized Vizslas.
  3. “Effects of ovariohysterectomy on reactivity in German Shepherd dogs” – Parvene Farhoody, et al. (Published in the Journal of Veterinary Behavior) Investigating the impact of ovariohysterectomy on reactivity, this study sheds light on the behavioral aspects of spaying in German Shepherd dogs
  4. “Reproductive capability is associated with lifespan and cause of death in companion dogs”
    • Authors: A. M. Hoffman, et al.
    • Published in PLOS ONE
    • Link: DOI: 10.1371/journal.pone.0186280
    • Summary: This study examines the association between reproductive capability, lifespan, and cause of death in companion dogs.


To align with this understanding, our contracts are built, emphasizing a commitment from our owners to postpone spay/neuter procedures until their dog has matured, typically between 18 to 24 months, unless a medical necessity dictates otherwise (which, in our seven years of experience, has occurred only twice). While the ultimate decision rests with you, should you choose to opt for an early spay without a compelling health reason, we will not place another dog in your home.

This decision is grounded in several key considerations. First, you willingly endorse the delayed spaying clause when signing the contract, and we transparently communicate our stance on this matter. Most significantly, it underscores a lack of respect for the contractual agreement. Although our breeding and rehoming aspects involve legal considerations and significant penalties, the spay clause, while not incurring additional legal costs, holds equal weight in signifying your commitment to the agreement you willingly entered into. Whether oversight in reading the contract or a choice to disregard it, opting for early spaying contradicts the commitment made to prioritize the health of your pup, a commitment we trust will be honored.

Take a minute or two

This is Dr. Becker, perhaps one of my favorite resources, I own Forever Dog,

I have gifted it to my Vet, to Brenda, to Bailee, this book aligns with our beliefs and this video is an exceptional watch if you are considering early spaying.  Our parents are hand picked.  They are exceptional and we fully believe every parent is capable of managing an intact puppy or we wouldn’t approve you!

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