Why we almost didn't neuter our dog - Dr. Marty Becker


Why we almost didn’t neuter our dog

Tuesday, May 17th, 2016 | By Dr. Marty Becker

Some things are good — dogs, for example. Some things are bad — Ebola virus springs to mind. And some things are a mixture of both — like neutering our dog, QT Pi Becker.

That might surprise you. For decades I championed and did early spay/neuter. All of our other dogs (Quixote, Quora, Gracie, and just-deceased Shakira) were spayed or neutered around four months of age. But new research points to some serious health risks from these protocols, and that’s why we delayed the decision for QT, who is now a year old.

Now, I’m not only a veterinarian, I’m a passionate advocate for homeless pets. All our dogs were adopted, and I certainly had no intention of letting QT breed. What’s more, I know that a high level of spay/neuter among owned pets is responsible for driving down shelter intake across the U.S. in the last two decades.

But as a veterinarian, I also know there are health downsides to removing a male dog’s source of testosterone, a hormone that has certain protective benefits for a number of body systems, including bone strength and reducing the chances of some kinds of cancer, allergies, torn ligaments, and even some behavior problems. And while I worked for some time with a product that sterilized dogs while preserving some testosterone production, that product is currently not available, so I didn’t have that option for QT.

That’s why to neuter QT was not an easy decision. And speaking honestly, if it weren’t for factors such as being unable to bring him to doggy playgroups, I would have kept him intact because I believe it’s better for his health (and absolutely not because I have some macho attachment to my dog’s McNuggets!).

Let me just say again that whether or not QT was neutered he would not have been allowed to breed, as I’m 100 percent on the side of no unwanted litters. That doesn’t mean it wasn’t a tough choice for this veterinarian; it was.


Update with some scientific citations as requested by my Facebook readers.




Cooley DM, Beranek BC, Schlittler DL, Glickman NW, Glickman LT, Waters DJ. Endogenous gonadal hormone exposure and bone sarcoma risk. Cancer Epidemiological Biomarkers Prev 11[11]:1434-40 2002 Nov.

Ru G, Terracini B, Glickman LT. Host related risk factors for canine osteosarcoma. Vet J. 1998;156(1):31-39.

Bell FW, Klausner JS, Hayden DW, Feeney DA, Johnston SD. Clinical and pathologic features of prostatic adenocarcinoma in sexually intact and castrated dogs: 31 cases (1970-1987). JAVMA 1991;199 (11):1623-1630.

Knapp DW, Glickman NW, DeNicola DB, Bonney PL, Lin TL, Glickman LT. Naturally-occurring canine transitional cell carcinoma of the urinary bladder. A relevant model of human invasive bladder cancer. Urolo Oncol 2000;5:47-59/

Blendinger C ; Blendinger K . Urinary incontinence in spayed bitches. 1. Pathogenesis, incidence and disposition. Tierarztl Prax 23[3]:291-9 1995 Jun

Mulholland SG, Qureshi SM, Fritz RW, Silverman H. Effect of hormonal deprivation on the bladder defense mechanism.

Slauterbeck JR, Pankratz K, Xu KT, Bozeman SC, Hardy DM. Canine ovariohysterectomy and orchiectomy increases the prevalence of ACL injury. Clinical Orthopedics [429]:301-5 2004 Dec.

Houpt KA, Coren B, Hintz HF et al. Effect of sex and reproductive status on sucrose preference, food intake and body weight of dogs. JAVMA 1979;174: 1083-1085.

Root M. Early spay-neuter in the cat. Vet Clin Nutr 1995;2; 132-134.

Duch DS, Chow FHC, Hamar DW et al. The effect of castration and body weight on the occurrence of the feline urological syndrome. Fel Pract 1978;8: 35-40.

Fettman MJ, Stanton CA, Banks LL et al. Effects of neutering on body weight, metabolic rate and glucose tolerance of domestic cats. Res Vet Sci 1997;62: 131-136.

Flynn MF, Hardie EM and Armstrong PJ. Effect of ovariohysterectomy on maintenance energy requirement of cats. JAVMA 1996;209: 1572-1581.