Dr. Michael W. Fox

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The Pros and Cons of Neutering Your Dog




 


THE PROS & CONS OF NEUTERING YOUR DOG


By Dr. Michael W. Fox


 


An excellent article by Kendall E. Houlihan DVM with the Animal Welfare Division of the American Veterinary Medical Association (AVMA) entitled “ A literature review on the welfare implications of gonadectomy of dogs” was published in the Journal of the AVMA, May 10, 2017. In summary, aside from the sound policy of neutering all shelter dogs and pups with rare exception as a population control measure, exceptions may be indicated for dog owners not in the business of breeding dogs.


These exceptions, where dogs of certain breeds, size and sex may have greater health benefits from not being gonadectomized/ neutered after informed veterinary assessment, are considerable. Thanks to Dr. Houlihan, veterinarians can now better inform their clients with certain pure breeds such as those susceptible to bone cancer, about the pros and cons of neutering, and after determining the clients’ competence in handling non-neutered dogs. While neutering may increase the risk for other cancers in certain breeds and sexes such as of the urinary bladder, cutaneous mast cell tumors and hemangiosarcomas, overall it increases longevity. Lymphomas seem to be least prevalent in un-neutered female dogs. Neutered male and female dogs are twice as likely as non-neutered dogs to develop bone cancer. Neutering eliminates the possibility of cancers of the reproductive organs, reduces of breast/mammary cancer especially if done before the first heat and reduce the incidence of benign prostatic hyperplasia. Neutered dogs of both sexes are more prone to cruciate (knee) ligament rupture, which may be associated with susceptibility to obesity, while hip dysplasia is more prevalent in neutered males than in neutered and intact females. Aggression between male dogs is more prevalent when they are not neutered. Urinary incontinence is most often seen in neutered females but can generally be controlled with medication.


Clearly, neutering has many health and welfare benefits for dogs kept as companions, but there are exceptions that are worth careful consideration by both veterinarians and their dog-owning clients. As Dr. Kendall states in a personal communication ( 6/6/17)  As research into potential impacts is ongoing, veterinarians should continue to use their professional judgment, weighing all of this information in light of the individual animal’s ownership, breed, sex, and intended use. The low incidence and multi-factorial nature of many of these conditions make it unlikely that recommendations for routine spay and neuter practices will be substantially altered”.


However, there are cultural considerations also, neutering being discouraged in Scandinavian countries with a reported 7 per cent of dogs being neutered. The Norwegian Animal Welfare Act makes it clear that surgical procedures are not to be used to adapt animals to the needs of humans unless strictly necessary.



Check the link below for a Dr. Fox C-Span feature concerning "Animal Testing"

Dr. Michael W. Fox on C-Span



--Video Link--

OUR ANIMAL RELATIONSHIPS: THE MOMENTS OF TRUTH PROJECT
Dr. Michael W. Fox

What right do we humans have to exploit other animals?  Where does that right come from and what are the limits if any?  What duties or obligations do we have in our relationships with our dogs, cats and other animals domesticated and wild?

          Follow and support Caroline Kraus and her Moments of Truth Project documentary film as she travels across the U.S. asking people, who variously live, work with and care for animals, these and other relevant questions.

Is there an overriding consensus and what are the reasons why people respond very differently to these questions, which in part examine our character, culture and future?

The viewing and discussion of this kind of documentary should be part of every school curriculum and will be of interest to all who work with, profit from and care for animals. Project Home Page: http://momentsoftruthproject.com/  To see the interview with Dr. Fox go to http://momentsoftruthproject.com/dr-michael-fox/