Due to recent advances in veterinary medicine, more options are now available when it is time to have your pet “spayed.” The surgery may be done in a traditional “open” manner or through minimally invasive means using laparoscopy. Procedures that may be performed include ovariohysterectomy, the surgical removal of the uterus and ovaries, or ovariectomy, when only the ovaries are removed. All of these procedures are performed under general anesthesia. Most primary care veterinarians recommend performing these procedures at approximately six months of age, but they can be performed on dogs of any age. They may be elective, or a treatment for a disease process.
The following are reasons to consider having your pet spayed:
- Vastly decreased chance for development of mammary (breast) cancer
- 200 times less likely if ovariohysterectomy performed before the first estrus (heat cycle)
- Eliminates chance of developing a pyometra (infection of the uterus)
- Eradicates unwanted estrous behavior and associated bleeding
- Eliminates unwanted pregnancies and risks of dystocia (difficult birth)
Most young healthy pets being spayed do not have any clinical signs. However, if your pet has a disease of her reproductive tract, such as pyometra, dystocia, or ovarian or uterine cancer, she may show signs associated with this disease process.
Medical workup for a routine ovariohysterectomy or ovariectomy generally consists of:
- complete physical examination
- additional tests for older dogs may include a complete blood count, serum chemistry, and urinalysis
- abdominal radiographs (x-rays) and possibly ultrasound may be necessary in dogs presenting with pyometra or dystocia
- house rest, with no running, jumping or rough play for two weeks following surgery
- pain medications are often prescribed for several days following surgery
- An Elizabethan collar may be necessary to prevent licking of the surgical wound.
Further treatments may be necessary following ovariohysterectomy for treatment of pyometra or other diseases.
Ovariohysterectomy can lead to mild complications such as:
- incisional bruising,
More serious complications such as hemorrhage and urinary obstruction are rare but can be life threatening. Ovariohysterectomy can be more difficult in larger or obese pets and may be associated with more complications. Urinary incontinence reported after surgery, which may require lifelong medical treatment.
The prognosis is excellent for routine ovariohysterectomy and ovariectomy. The prognosis is more variable following ovariohysterectomy for pyometra and dystocia.