How many days does a Toy Terrier's first heat last? - briefly
The first heat cycle in a Toy Terrier typically lasts for about 3-4 days. However, this can vary slightly depending on the individual dog.
How many days does a Toy Terrier's first heat last? - in detail
The duration of a Toy Terrier's first heat cycle can vary, but it typically lasts for about 10 to 21 days. This period is marked by several stages that are important to understand for proper care and management of your pet during this time.
The first stage, known as proestrus, begins with the swelling of the vulva due to increased estrogen levels. During this phase, which can last from 5 to 9 days, the female may exhibit changes in behavior such as increased affection or aggression towards humans and other animals. There is usually no vaginal discharge at the beginning of proestrus, but it may start to appear as the stage progresses.
The second stage, estrus, is when the Toy Terrier is most fertile and receptive to mating. This phase typically lasts for 9 days but can range from 5 to 14 days. During estrus, the female will have a noticeable vaginal discharge that may be bloody or straw-colored. She will also likely display signs of interest in male dogs, such as lifting her tail and allowing them to mount her.
The final stage is known as diestrus, which begins after the female stops accepting males for mating. This phase lasts from 60 to 90 days but can vary significantly depending on whether or not the Toy Terrier becomes pregnant. If she does not become pregnant, the cycle will end with a return to anestrus, a period of sexual inactivity that can last for several months before the next heat cycle begins.
It is essential to monitor your Toy Terrier's behavior and physical changes throughout her first heat cycle to ensure she remains healthy and comfortable. If you notice any unusual symptoms or if the heat cycle seems unusually prolonged, it is advisable to consult with a veterinarian for professional advice and guidance.