What is Silent Heat in Dogs?


Have you ever wondered what silent heat in dogs is? Silent heat, also called anestrus, is the period between heats when a female dog is not interested in mating. This can last anywhere from two to six months.

Some dogs may show signs of interest in mating during this time, but they are not actually fertile. The average length of time for a silent heat is three months.

The term “silent heat” is used to describe a female dog’s reproductive cycle when she shows no external signs of being in heat. This can be confusing for owners, as they may not realize their dog is ready to mate. Silent heat usually lasts about two weeks and occurs between the first and second heats of a dog’s life.

During this time, the bitch’s ovaries will mature and release eggs, but her vulva will not swell or bleed. She may show some behavioral changes, such as increased urination (to mark her territory) or restlessness. If you think your dog is in silent heat, it’s important to have her checked by a veterinarian.

They can confirm if she is in fact in heat and advise you on how to proceed. For example, if you plan on breeding your dog, timing is everything!

Dahilan ng SILENT HEAT sa aso

What are the Signs of a Silent Heat in Dogs?

There are a few signs that may indicate your dog is in a silent heat. These include changes in behavior, such as acting more affectionate or clingy than usual, increased urination, and restlessness. You may also notice physical changes, such as swollen vulva and bloody discharge.

If you suspect your dog is in a silent heat, it’s important to see a veterinarian to confirm and discuss treatment options.

Can a Dog Get Pregnant in a Silent Heat?

There are a few different types of heat cycles that dogs can go through, but the most common is called the “silent heat.” This is when a dog’s body is preparing for ovulation, but there are no external signs that anything is happening. The silent heat usually lasts for about two weeks.

During this time, the dog’s body temperature will drop slightly and she may have some discharge from her vulva. She may also be more restless than usual.

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If you’re hoping to breed your dog, it’s important to pay close attention to her during this time.

You’ll need to take her to the vet for a progesterone test around day 14 of her cycle. This will help you determine if she is ovulating and ready to mate. If everything looks good, you can start breeding her with the stud dog of your choice!

Can a Dog Have a Heat And Not Bleed?

There are two types of heat cycles that a female dog will experience during her lifetime – proestrus and estrus. Proestrus is the initial phase of the heat cycle, during which the dog’s body prepares for ovulation. This phase can last anywhere from 9 to 17 days, but on average, it lasts about 12 days.

The dog’s vulva will swell and she may exhibit some bloody discharge during this phase. However, she will not actually ovulate until she enters estrus, which is the second phase of the heat cycle. Estrus typically lasts between 3 and 21 days, with an average duration of 9 days.

During this time, the dog’s vulva will remain swollen and she will continue to have bloody discharge. She will also be receptive to mating with male dogs. Ovulation usually occurs midway through estrus, at which point the dog’s eggs are released from her ovaries and travel down her fallopian tubes towards her uterus.

If fertilized by sperm from a male dog, these eggs will implant in the uterus and pregnancy will occur. If no fertilization occurs, the eggs simply disintegrate and are reabsorbed by the body.

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So to answer your question – yes, a female dog can have a heat cycle without bleeding if she does not ovulate (which is relatively rare).

If she does ovulate but is not mated with a male dog during estrus, then there is also a chance that pregnancy won’t occur since fertilization did not take place.

Can a Female Dog Have a False Heat?

Female dogs can have false heats, also called phantom heats or pseudocyesis. This is when a dog’s body goes through the physical and hormonal changes of a heat cycle without actually ovulating. False heats are more common in young, nulliparous (never-bred) dogs and in older, retired breeding females.

They can be caused by stress, a change in routine, or an underlying health condition. If your dog is having false heats, she may behave like she’s in heat (calling to you, restlessness, etc.), but won’t produce eggs and can’t get pregnant.

female heat silent


Dog Silent Heat Symptoms

If your dog is suddenly silent, there may be a number of reasons for this change in behavior. However, one possibility is that your dog is in heat and trying to avoid attracting attention. Here are some other common symptoms of a dog in heat:

• Acting restless or agitated • panting more than usual • urinating more frequently

Dog in Heat But No Blood

If your female dog is in heat but there’s no blood, don’t worry – this is perfectly normal. While most dogs will have a bloody discharge during their heat cycle, some may not. This can be due to a number of factors, such as the dog’s age, health, and breed.

That said, it’s important to keep an eye on your dog during her heat cycle, regardless of whether or not she has a bloody discharge. She may be more prone to UTIs or other infections during this time, so watch for any changes in her behavior or appearance (including increased urination or excessive licking). If you’re concerned about anything, always consult with your vet.

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2 Year Old Dog Never Been in Heat

If your female dog is two years old and has never been in heat, it’s possible she’s just late to the party. Some dogs don’t experience their first heat cycle until they’re 18 months to 2 years old. If your dog is small or toy-sized, she may even be a little older before she goes into heat for the first time.

There’s really no cause for concern if your dog is otherwise healthy and happy. If you’re not sure whether or not your dog is in heat, there are some signs you can look for. She may seem restless or agitated, her vulva may swell and secrete a bloody discharge, and she may urinate more frequently than usual.

These signs can last anywhere from three to four weeks, so it’s important to be patient while waiting for your dog’s first heat cycle to end.


When a dog is in heat, or estrus, she is fertile and can become pregnant. The average length of time for this cycle is about two to four weeks. However, some dogs may experience what is called “silent heat.”

During a silent heat, the female dog does not show any physical signs that she is in heat. She will not bleed or have any other outward physical signs. However, she is still fertile during this time and can become pregnant if she mates with a male dog.

Silent heats are more common in small breeds of dogs than large breeds. They can also be seen in older dogs who have gone through several estrus cycles. If you are unsure if your dog is in silent heat, your veterinarian can perform a simple blood test to check her hormone levels and confirm whether or not she is currently in estrus.

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