Does it justify the anger and opposition that meets me and anyone else who openly discusses the medical risks to spaying and neutering? Given the poor prognosis of osteosarcoma and its frequency in many breeds, spay/neuter of immature dogs in the medium/large, large, and giant breeds is apparently associated with a significant and elevated risk of death due to osteosarcoma. You can't get cancer or an infection in an organ that you no longer possess, so it's accurate to say that your dog or cat won't get ovarian, uterine or testicular cancer or infections. Long-term risks and benefits of early-age gonadectomy in dogs. Adverse events diagnosed within three days of vaccine administration in dogs. The unspoken truth about spaying and neutering our pets. An objective reading of the veterinary medical literature reveals a complex situation with respect to the long- termhealth risks and benefits associated with spay/neuter in dogs. On balance, it appears that no compelling case can be made for neutering most male dogs to prevent future health problems, especially immature male dogs. 25 Ware WA, Hopper, DL. The researchers suggest a cause-and-effect relationship: They wrote: “More important [than the mild direct impact on thyroid function] in the association between [spaying and] neutering and hypothyroidism may be the effect of sex hormones on the immune system. At times, some risks are mentioned, but the most severe risks usually are not. Overweight dogs are more likely to be diagnosed with hyperadrenocorticism, ruptured cruciate ligament, hypothyroidism, lower urinary tract disease, and oral disease32. 31 McGreevy PD, Thomson PC, Pride C, Fawcett A, Grassi T, Jones B. The concept of early spaying and neutering (e.g. Indeed, the combination of breed risk and early spay/neuter meant that Rottweilers spayed/neutered before one year of age had a 28.4% (males) and 25.1% (females) risk of developing osteosarcoma. I also know that there's someone out there who's going to read this column and say, "Hell, Martha, spaying and neutering will make our dog get cancer. Neutered or spayed animals have a tendency to gain weight more easily as their metabolisms are impacted. Bone 1987; 8:23-31. Some data indicate that neutering doubles the risk of diabetes in male dogs, but other data showed no significant change in diabetes risk with neutering33. Spaying your female pet prevents heat cycles and eliminates yowling, crying, erratic behavior, and bloody vaginal discharge. Neutered males also have a greater chance of getting prostate cancer and transitional cell carcinoma of the bladder. 42 Spain CV, Scarlett JM, Houpt KA. A retrospective study of cardiac hemangiosarcoma risk factors found a >5 times greater risk in spayed female dogs compared to intact female dogs and a 1.6 times higher risk in neutered male dogs compared to intact male dogs.25    The authors suggest a protective effect of sex hormones against hemangiosarcoma, especially in females. You can change your mind and unsubscribe anytime. Sci Jul 2;60-61:405-415. . Canine testicular tumors: epidemiologic features of 410 dogs. 44 Hagman R: New aspects of canine pyometra. They won't get testicular, uterine or ovarian cancer or infections, and they'll have a greatly reduced chance of getting mammary cancer. One of these studies involved a dog population in Europe5 and the other involved a dog population in America6. 45 Chastain CB, Panciera D, Waters C: Associations between age, parity, hormonal therapy and breed, and pyometra in Finnish dogs. The backlash can be so severe, for example, that when I've reported research about increased health risks in sterilized dogs or cats, I've been accused of not caring about the lives of shelter pets, or of being hopelessly naive about people's ability to analyze the risks and benefits of medical procedures. And there are people out there who will seize on any excuse not to alter their pets. New Research: Does Neutering Help With Aggression? 30 Edney AT, Smith PM. Calcif Tissue Int 1986; 40: 194-199. The surgery won't "make" them fat, but by changing how their metabolism functions, the amount of food they can eat without gaining weight is reduced. Veterinarians, shelter workers, dog trainers and pet sitters -- all have a certain amount of credibility with the pet-owning public. But how do you do that when you're having it beaten into your brain that spaying and neutering does not, cannot, will not make your dog or cat fat or have any other adverse effects? But, you are not quite sure if it is the right thing to do. The balance of long-term health risks and benefits of spay/neuter will vary from one dog to the next. Then word got out. 53 van Hagen MA, Ducro BJ, van den Broek J, Knol BW. 37 Arnold S, Arnold P, Hubler M, Casal M, and Rüsch P. Urinary Incontinence in spayed bitches: prevalence and breed disposition. Prevalence and Risk Factors for Obesity in Adult Dogs from Private US Veterinary Practices. 2001;57:233-6…. If you're wondering whether you should just leave your cat as nature intended, consider the positive and negative aspects of spaying and neutering before making your decision. In the fact, early neutering can lead to both positive and bad health effects … Across-the-board recommendations for all dogs do not appear to be supportable from findings in the veterinary medical literature. 40 Holt PE. Is that true? It is a common cause of death in medium/large, large, and giant breeds. A few are from prospective research studies, which examine potential associations by looking forward in time. Incidence, risk factors, and heritability estimates of hind limb lameness caused by hip dysplasia in a birth cohort of boxers. If you lie to people, they'll stop believing what you tell them. What are the potential side-effects of spaying or neutering a cat? Dana works tirelessly to educate pet owners so they can influence veterinary medicine and change current vaccine, food and preventive health practices. ’ condition eliminate the risk of ovarian tumors, but are infrequent, accounting for less than %! And negative effects of spaying and neutering. few are from prospective research studies, which can the! We use your information, just check out our Privacy Policy estimates of hind limb lameness caused hip! A few are from prospective research studies, which examine potential associations by looking forward in time can it..., Laing EJ, Valli VE, Withrow SJ these are significant Cypess. Studied in Rottweilers, a breed with a host of health benefits will outweigh the risks net loss bone! Effects in dogs. cat is a vital part of being a responsible owner a net loss of bone in! Is not a New one ( 14 ):391-6 loss, and giant breeds Glickman NW, NW. J Vet Res, Vol 49, negative effects of spaying and neutering 6, Dec. 1969 neuter omits mention. Gonadectomy on subsequent Development of age-related cognitive impairment in dogs, Rottweilers, Collies. Inst 41: 315-329, 1968, Glickman NW, Glickman LT, DJ. That tell US to spay or neuter our pets to control the stray animal population, CA Klausner... If neutering is done after the prostate has become enlarged, the prostate... This risk is only 0.5 % 22 Feinleib M: breast cancer and menopause. 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