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While it is generally easy to determine when an average dog is in heat and ready to mate, Chihuahua owners may face additional challenges.
This means some owners might miss their Chihuahua’s first heat cycle simply because Chihuahuas are meticulously clean and lick away any evidence of being in heat! ☺️
But when exactly are these wonderful and affectionate little dogs in heat?
The timing of the heat cycle varies significantly from one Chihuahua to another.
A Chihuahua’s first heat typically occurs between six and eight months of age on average.
There are always exceptions, and it is not uncommon for a female to have her heat cycle at five months or at one year old (regardless of her coat type).
However, because the Chihuahua is a small dog breed, her heat cycles occur much earlier than those of much larger dog breeds.
Signs your Chihuahua is in heat and ready to mate
Now that you know when Chihuahuas go into heat, you might be wondering how to recognize the signs for mating. 😉
The Chihuahua heat cycle lasts an average of 21 days and includes proestrus, estrus, and diestrus. Anestrus is a period of essentially inactive rest.
The canine cycle can be divided into four precise stages, each with distinct characteristics listed below.
Proestrus
This phase lasts between four and nine days.
During this period, your Chihuahua’s reproductive tissues may appear more swollen than usual.
The most obvious sign is vaginal bleeding; however, as mentioned above, you might not notice it if you have an overly clean Chihuahua who licks away the traces. Male dogs will be very interested in the female, but she will not allow them to mate at this time.
Estrus
This phase lasts between four and thirteen days.
The bloody discharge observed in the previous stage fades and is replaced by a pink or straw-colored discharge. During this phase, your Chihuahua is officially in “standing heat,” meaning she will stand still with her tail pulled to the side, allowing the male to mount her. This is the phase where she is at peak fertility.
Diestrus
Also called metestrus, this phase essentially concludes the active part of the heat cycle and lasts from 60 to 90 days.
Your Chihuahua will no longer be interested in males, although some of them may linger around at the beginning.
- If your Chihuahua is pregnant, this phase lasts until the birth of the puppies, about 63 days later.
- If your Chihuahua is not pregnant, diestrus can last two to three months, and during this period, dogs may experience a false pregnancy.
Anestrus
Anestrus is simply the phase during which the reproductive organs rest. It generally lasts between two and three months.
Although it looks like a period of inactive calm, in reality, your female Chihuahua’s pituitary glands and ovaries are preparing for the next proestrus phase several months later.
🐶 It is important to know that Chihuahuas generally have heat cycles every five to eight months, which means your Chihuahua will most likely have heat cycles twice a year. 😉
Knowing when Chihuahuas can mate is fundamental for any average dog owner or potential breeder.
If you are a dog owner, you must secure your Chihuahua and keep her away from males with a keen nose during this period.
Also, if you are considering breeding your Chihuahua (toy or standard), you must determine the best time to do so to increase the chances of pregnancy.
However, it is imperative to do your research and learn how to be a reputable Chihuahua breeder after reading the important considerations regarding Chihuahua reproduction.
Taking care of a Chihuahua in heat
As soon as you recognize the signs of heat, you must do what is necessary to protect your Chihuahua from the attention of males if you do not plan to breed her.
If you are still having trouble deciphering the potential signs of your dog’s heat, rest assured, the behavior of male dogs will let you know.
So don’t be surprised if male dogs show up on your doorstep. A male dog is capable of detecting the scent of a female in estrus from up to 8 km away! 😁
Tips to prevent mating
Avoid dog parks and, if you must take your female Chihuahua out, keep her on a leash at all times.
Never underestimate the persistence and determination of intact male dogs. These little hunters can be very creative (sometimes aggressive) and use clever planning to dig under a fence or even climb it to reach her.
Also, watch the door: even if your pet dog has never had the intention of running away, during heat, it is quite possible that she will wander off.
By preventing your pet from urinating everywhere, you will also keep males away, as females urinate quite frequently during their heat cycle to leave “calling cards” indicating their availability.
Urination is not necessarily limited to the outdoors; in fact, some females have no problem urinating in the house. And in case you are wondering how to protect your furniture and carpet from these bloody discharges, you can invest in a pair of doggy diapers, special panties for dogs in heat.
Tips and risk factors for breeding Chihuahuas
When is this adorable dog breed in heat and ready to mate?
In natural matings, males simply know when the time is right, and females make themselves available.
In general, this occurs between the 8th and 15th day of heat, counting from the day your little dog started bleeding.
There is really no guarantee that mating at this time will result in puppies. However, breeders have found that allowing a mating every two days starting from the 7th day of heat until the female allows it increases the chances of success.
Final Paw
Breeding this dog breed is a serious choice, especially when it comes to a small-sized breed like the Chihuahua, whose pregnancy is much riskier than that of other large dog breeds. 😊
Chihuahuas (short-haired or long-haired) should never be bred during their first heat. They are too young, and giving birth can lead to complications for both them and the puppy.
Although Chihuahuas are not a fragile breed, they should rather be bred for the first time during their second or third heat and before the age of three.
Breeding is an activity that requires great expertise, a good knowledge of genetics (detecting the merle gene), and ultimate goals of improving the breed.
Don’t hesitate to share your experience regarding the mating of your favorite little furball below, and of course, always ask your veterinarian for advice!
– The DoxieLife team – We are fans of dachshunds but remain in love with all dog breeds 💚🐶
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