In general, it will be between 7-9 months for the smaller females and later for the bigger breeds. Hence, for small dogs, up to an adult body weight of 20kg, we recommend desexing at 6 months old. For larger dogs, we recommend leaving it a little while longer, so about 8-9 months.
When should I spay my female dog? We recommend waiting until your dog is at least over 6 months and likely even older for larger dogs. The benefits are much more pronounced in larger dogs, but there is not a lot of difference for lap dogs.
Q: Should I let my dog have a heat before I spay her? A: Medically, it's better to spay your dog before their first heat. It greatly reduces the risk of mammary tumors. People who wait to spay their dogs until after their second heat greatly increase the risk of mammary tumors in their pets.
Spaying your dog too early can result in health problems later on since her hormones should have some time to work. Early spaying can increase the risk of hip dysplasia, torn ligaments, bone cancer, and urinary incontinence.
Is it Too Late? The recommended time to spay or neuter a dog is six to nine months. But if your dog is healthy, there is no specific age limit to having the procedure done.
We know that spaying before the first heat cycle reduces the incidence of mammary cancer by 99.5% while spaying after the first heat cycle but before the second decreases the incidence by 92%. Spaying after the second heat cycle decreases the incidence rate by 74%.
Female dogs
They can get an uterine infection, called pyometra, that requires emergency surgery. If this condition is untreated or surgery is not done as soon as possible, the infection gets into the bloodstream and becomes fatal. Female dogs that aren't spayed can also get mammary tumors.
Basically, we are seeing that delaying spaying and neutering until after maturity lessens the risk of hip dysplasia, cruciate ligament tears, other bone and joint abnormalities, and some cancers. Behavior disorders, including aggression and noise phobias have also been related to hormone status.
If we spay a female dog before her first estrus, or “heat,” we essentially eliminate her chances of developing mammary cancer. This benefit holds true for any female dog spayed before the age of 2, yet incidence of mammary cancer increases with each estrus period.
An age of six to nine months of age may be appropriate for neutering or spaying a toy breed puppy or small breed puppy but a larger or giant breed may need to wait until they are near or over 12-18 months of age.
Female dogs that are spayed are at greater risk for urethral sphincter-mechanism incompetence, which can result in urinary incontinence, than are intact female dogs. Concerns exist regarding early age gonadectomy in female dogs, because of a possible increased risk of urinary incontinence.
Some signs of a female dog going into heat may include lower energy levels, more aggressive behavior, differences in leg-raising while urinating, urinating more often than usual, and even running away from home. This is unlike male dogs, who do not experience heat cycles.
Heat usually lasts between 2-4 weeks. Early in the cycle, a female dog may not be receptive to male dogs, although some are receptive through the entire cycle. It can be shorter or longer and you'll know the cycle is over when all her vulva returns to its normal size and there's no more bleeding or discharge.
In general, it will be between 7-9 months for the smaller females and later for the bigger breeds. Hence, for small dogs, up to an adult body weight of 20kg, we recommend desexing at 6 months old. For larger dogs, we recommend leaving it a little while longer, so about 8-9 months.
Spaying: A spay procedure should be done at 4-5 months old. This is before your dogs first heat cycle, which typically falls around 6 months — this helps decrease the risk of serious health issues, such as mammary cancer.
Starting when your female puppy is between six months and one year old, she'll begin her reproductive cycle, or “go into heat.” During this 3- to 4-week period, she's ready to mate and looking for dates. That said, every pup is different and your pup may be on her own timeline.
While there are a lot of variables, spaying will typically run $50–$500. Costs at the low end of that spectrum are typically subsidized through a public agency. "There are many low-cost spay and neuter clinics around the country to help make the process more accessible to all pet owners," Moore says.
When a female dog or cat goes into heat, their reproductive organs and related blood vessels become engorged with blood. Your veterinarian will need to take extra precautions and it takes more time to complete the surgery.
SPAYING – THE NEGATIVE SIDE
Spaying may cause weight gain. Some pets may gain weight after spaying and as they get older. Just as with people, to loose weight we need to either diet or exercise. Cutting back on food intake or increasing your pets activity will help reduce weight gain.
Dogs who are spayed/neutered too early have an increased chance of developing undesirable behavioral issues such as phobias, fear aggression and reactivity. Early spay/neuter triples the risk of developing hypothyroidism and becoming obese.
A University of Georgia study, based on the medical records of more than 70,000 animal patients, found that the life expectancy of neutered male dogs was 13.8% longer and that of spayed female dogs was 26.3% longer.
Your female pet will live a longer, healthier life.
Spaying prevents uterine infections and decreases the incidence of breast tumors, which are malignant or cancerous in about 50 percent of dogs and 90 percent of cats. Spaying your pet before her first heat offers the best protection from these diseases.
She may cry or moan a little, and might just feel like sleeping. It's important to let her rest, keeping her still will be essential for an uneventful recovery. It often takes a day or two for pets to feel like themselves again. It can also take a couple of days for them to pass faeces.
Recovery After Spaying Surgery
Most pets will start to feel better in 24 - 48 hours, but full recovery takes between 10 to 14 days. During this period you should aim to keep your pet calm and refrain from allowing them to jump, as this could cause the incision to reopen.