Neutering of Diabetic Dogs

The production of progesterone associated with estrus or pregnancy tends to result in instability of the diabetes.

In female dogs fit for surgery, neutering or spaying (i.e. Ovariohysterectomy or ovariectomy) should be carried out more or less immediately (i.e. prior to insulin treatment) and intravenous fluid therapy administered in the perioperative period.

If an individual animal’s condition is critical (dehydration, anorexia, uremia, severe hyperglycemia and glucosuria) and immediate surgery is contraindicated, intravenous fluid therapy and insulin administration should be started to stabilize her condition. Ovariohysterectomy/ovariectomy should then be carried out as soon as the bitch has improved sufficiently. On the day of surgery, pre-operative fasting will necessitate reducing the insulin dose by around 30%.

Following surgery, regular monitoring of the blood glucose concentrations is necessary until the bitch is stable.

The insulin response of target tissue cells will often improve following neutering of female dogs and the insulin demand will decrease accordingly.

It is recommended that unspayed female dogs, diagnosed with diabetes, be surgically spayed.