How Long Do Dogs Stay in Heat Essential Guide for Pet Owners

Bitches and their heat cycle: what you need to know

Bitches go through their first estrus after puberty. Each heat consists of several phases, with the phase known as estrus being the stage when the bitch is ready to conceive. During this time, you may hear the terms “heat” or “estrus” used to describe her condition.

Signs that your dog is in heat

Here are a few signs you should look for when your dog is in heat:

  • Swelling of the vulva: Your dog’s vulva will become larger, but this change may not be noticeable.
  • Vaginal discharge: At the beginning of the cycle, you may notice a bloody discharge. Over time, the discharge will become thinner, watery and pinkish in color.
  • Frequent urination and marking: Your dog may urinate frequently and mark to show she is ready to mate.
  • Behavioral changes: She may appear more nervous, alert or clingy. In addition, she may show affection to the male by lifting her hips or wagging her tail.

When does estrus begin?

Dogs usually begin estrus at puberty, which occurs between 6 months and 2 years of age, depending on breed and size. Small dogs tend to reach puberty earlier than large dogs. The frequency of estrous cycles also varies by body type, with most dogs experiencing 1-3 cycles per year. On average, dogs are in heat for 2-4 weeks. They are most fertile when the discharge turns pink and watery, but conception can occur at any point in the cycle.

The Four Phases of a Dog’s Oestrus Cycle

There are four phases of a dog’s estrous cycle: pre-estrus, estrus, inter-estrus, and post-estrus.

1. Pre-estrus

Pre-estrus is the initial phase of the estrous cycle and lasts about 9 days. During this phase, your dog’s body begins to prepare for mating. You may notice that her vulva is swollen with a bloody discharge. She may also become more affectionate or clingy. Although she is attracted to male dogs at this stage, she is not yet willing to mate and may react aggressively if someone approaches.

2. Heat Stage

Oestrus is the mating period and usually lasts about 9 days. During this phase, the discharge becomes lighter and less bloody. Your dog will actively seek out males and may initiate mating. Ovulation usually occurs 2-3 days after mating. During this stage, your dog will show that he is ready to mate by marking behavior.

3. Oestrus

The estrous period is followed by the inter-estrous period, which lasts about two months. During this time, your dog’s body will either support the pregnancy or begin to return to a resting state. Her vulva will return to normal size and her vaginal discharge will cease.

4. The period without estrus

The estrus phase is the final stage of the cycle, during which the dog’s reproductive system goes dormant and repairs itself. This phase can last from 90 to 150 days before moving on to the next pre-estrus period.

Preventing the Heat Cycle

Spaying a female dog before her first heat is a common option for most pet owners. Spaying not only eliminates the risk of unwanted pregnancies, but also reduces the likelihood of certain health conditions, such as mammary cancer. It is the most effective way to prevent your dog from going into heat. If you’re getting ready to welcome a new pet into your family, you may also want to read the article “Welcoming a New Pet Home” for advice on essential supplies.

Tips for Managing a Dog in Heat

If you’re new to caring for a dog in heat, these tips can help make this period smoother for you and your furry friend:

  • Focus on nutrition: proper nutrition is crucial, especially during this time.
  • Observe her behavior: pay attention to her signals to better understand her needs.
  • Observe interactions with the male dog: the male may attract the bitch before she is ready. Watch for defensive behavior in the bitch that indicates she is not ready to mate.

By staying informed and prepared, you can help your dog get through the heat easily and comfortably.

Zera: supporting you and your dog every step of the way.

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