Dogs can go into heat as young as four months in smaller breeds, but averages about six months old. Some giant breeds may not go into their first heat until they're 18-24 months old.
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.
Flowers are blooming, birds are chirping, and new life is beginning. And, if you have a female dog who has not been spayed, spring is also the time of year when many animals come into “season”, or have a heat cycle.
The typical heat cycle will last between two and four weeks. Your dog or puppy will be fertile during this entire time but there is a small period, 9-10 days into the cycle, where they are especially fertile.
Should I let my dog go through one heat cycle? The answer is NO for most dogs. The more heat cycles your dog goes through increases the chances for developing breast cancer later in life. If you spay the dog at our Carmel animal hospital before the first heat, you essentially remove any chance of breast cancer.
Female dogs cycle into heat on average every six months. But this can vary, especially in the beginning, so it's a good idea to keep track. It can take some dogs 18-24 months to develop regular cycles. Small dogs will tend to go into heat more frequently, as much as three or four times a year.
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.
A dog's body experiences lots of changes when she's in heat. Because of these changes, your dog may experience some changes in behavior and even some pain. Much like humans, female dogs experience cramps and hormonal changes when their bodies are preparing to mate.
Some females will go off their regular food during this time, so you may have to prepare special meals to encourage her to eat. Never reprimand your dog if she has accidents in the house. This is normal behavior when she's in heat. Instead, reassure her and take her outside more frequently, but always on a leash.
Progesterone hormone can become higher which can lead to aggressive behaviour in a female after a season has ended. If your dog is having a phantom you will also start to see nesting behaviour. She will attempt to create a safe area for her puppies (though non-existent) picking an area within the home.
To be clear, the question here is whether or not to spay early or after the first heat cycle. Because of significant risks of pyometra (uterine infection) or mammary cancer late in life we recommend that all female dogs not intended for breeding be spayed before their second heat cycle.
Can Spaying or Neutering Make a Dog Less Hyper? 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. Each dog has its own positive and negative social habits.
Some veterinarians say that spaying and neutering too early will deprive your dog of the sex hormones necessary for their maturation. These hormones are responsible for skeletal growth. If the procedure occurs too early, it may take much longer for your dog's growth plates to close.
Silent Heat Cycle
This occurs when your female will have a heat cycle without the normal symptoms such as bleeding and swelling of the vulva. Females will still be receptive to males and can become pregnant. Your veterinarian can check for a silent heat cycle by performing vaginal cytology and progesterone assays.
On average, puberty (or sexual maturity) is reached at about six months of age, but this can vary by breed. Smaller breeds tend to have their first estrous cycle at an earlier age, while large and giant breeds may not come into heat for the first time until they reach eighteen months to two years of age.
Proestrus: Proestrus is the start of the heat period where your dog's body is preparing to mate. Signs seen during this phase include a swollen vulva, blood-tinged discharge, excessive licking of the genital area, clingy behavior, and aggression toward male dogs. Your dog may also hold her tail close to her body.
There are some old wives' tales that a dog should go through at least 1 heat cycle before she's spayed. This just isn't the case. Studies have shown that the risks of mammary cancer and urinary incontinence are higher if you wait to spay your dog after she's gone through 1 or more heat cycles.
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.
However, spaying your dog while in heat presents some increased risk of complications from bleeding due to increased vascularization in the reproductive organs during the heat cycle.
To get to the heart of your question, male dogs have excellent senses of smell and can sense an intact female in heat up to 3 miles away. Dogs have geographic territories, and they can generally detect any intact females within those boundaries.
Got a stinky female dog? You're not alone! But never fear, this smell is perfectly natural for a female dog in the midst of her heat cycle. While male dogs find the smell to be very alluring, it's not such a treat for their owners.
Different dogs react differently to heat. Some may feel tired all day, while others may become restless. Observing your dog's behavior and choosing the right amount of rest and exercise is important to keep your dog comfortable.