What is actually done in a spay or neuter procedure?
In both cases, the animal is put under general anesthesia so that it cannot feel anything. A spay surgery (also called an ovariohysterectomy) is performed on females. While performed routinely, an ovariohysterectomy is a major surgery in which the reproductive tract – including the ovaries, fallopian tubes, and uterus – is removed. Bloodwork may be performed to make sure the pet is healthy enough for anesthesia and surgery. Neutering refers to the castration of a male animal. It is a surgical procedure in which both testicles are removed. Neutering requires considerably less time and equipment than a spay surgery.