Dogs: According to the
In general, in small breed dogs (less than 50 pounds) we recommend spaying around 6 months. In large breed dogs (greater than 50 pounds) we recommend waiting until after skeletal maturity but before the second heat cycle(usually 12-15 months) in spaying female dogs or anytime after skeletal maturity in male dogs.
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.
Early-age neutering does not stunt growth in dogs or cats (a once-held belief), but may alter metabolic rates in cats. The anaesthetic and surgical procedures are apparently safe for young puppies and kittens; morbidity is lower and recovery is faster than in adult animals.
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.
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 retrospective studies have recently been published that show very early sterilization may delay closure of growth plates in big bones, meaning the animal gets a little bigger or longer. In some breeds, like German Shepherds and Golden Retrievers, this may lead to hip or joint issues.
The most recent research has shown that spaying and neutering pets as puppies and kittens can affect their growth. Early spaying and neutering increases the length of time that the bones grow, which results in a taller pet. The concern is that increased growth may affect how joints align.
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.
How Long Do Puppies Grow? Although all puppies are officially considered adult dogs once they reach one year old, puppies continue to grow in height and size while their bones are still developing, which takes anywhere from 6 to 24 months.
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.
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.
The short answer is that no, your dog isn't likely to be less hyperactive after getting spayed or neutered. It won't change their personality much, if at all.
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%.
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.
The healing process takes a minimum of 7 days. Your pet's appetite should return gradually within 24 hours of surgery. Lethargy lasting for more than 24 hours after surgery, diarrhea, or vomiting are not normal and you should contact us immediately.
Some females become irritable or anxious and others might feel pain. Because spayed dogs don't have to go through these hormonal changes, their behavior may be more consistent. Females may show less aggression towards dogs and humans after they're spayed.
No, spayed dogs will no longer have periods (heat cycles). Periods occur due to the presence of ovaries. Female dogs will not have periods in the absence of ovaries and uterus.
Unspayed female dogs can have their first heat cycle anywhere between 6 and 15 months of age. During heat, which happens every six months or so and lasts a few weeks, your dog can get pregnant.
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.
She adds that the first few days post-surgery are the most critical, because it's the highest risk period for having some type of internal bleeding from the surgery sites.
Female dogs can get much more life threatening conditions if they are not spayed. 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.
But by spaying dogs before the first heat cycle the risk drops to less than ½ of 1/10 of 1% (0.05%). Spaying after the first heat cycle but before the second also reduces the risk, but not by as much. The first heat cycle generally occurs around 7 months for small dogs, and a little later in large breed dogs.
Having your dog spayed or neutered early will not stunt your puppy's growth, but it might affect the joints of large breed dogs. Studies show that early spay/neuter does affect the growth plate, delaying its closure and causing dogs to grow taller than they should have.
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.