How Long are Heat Cycles in Dogs? 


As a responsible pet owner in Chicago, understanding your dog’s heat cycle is crucial for her health and wellbeing. This blog aims to provide you with essential information about the heat cycles in dogs, helping you better care for your furry friend. For personalized guidance and veterinary services, Partners Animal Hospital West Loop is here to assist.


What is a Heat Cycle in Dogs?

A dog’s heat cycle, also known as the estrous cycle, is the period when she becomes receptive to mating. It’s vital to recognize the signs of a heat cycle, which typically include changes in behavior, physical symptoms, and increased attention from male dogs.

The Proestrus Stage

This initial stage lasts about 9-10 days. You might notice your dog attracting male dogs, along with swelling of the vulva and light bleeding. During this time, your dog may seem more clingy or agitated than usual.

The Estrus Stage

Following proestrus is estrus, lasting around 5-9 days. This is when your dog is fertile and might actively seek out male companionship. Signs include a decrease in swelling and bleeding, and a change in the color of the discharge.

The Diestrus and Anestrus Stages

Diestrus signals the end of your dog’s fertile period and can last up to 90 days. Anestrus is a period of inactivity before the cycle begins again, lasting around 100-150 days. During these stages, it’s essential to monitor your dog’s health and behavior for any abnormalities.


Frequency of Heat Cycles in Dogs

Dogs typically go into heat every six months, but this can vary based on breed, age, and health. Understanding your dog’s specific cycle is vital for proper care and planning, especially if you’re considering breeding.


Caring for a Dog in Heat

During her heat cycle, your dog needs extra attention and care. Keep her away from male dogs if you’re not planning to breed, and consider using dog diapers to manage bleeding. Regular check-ups with your vet at Partners Animal Hospital are essential to ensure her health and wellbeing. In addition, if you’re concerned, do not recognize if your pet is in heat, or if the heat is lasting too long, it is best to bring your dog in for an examination to rule out other medical conditions. 

Understanding your dog’s heat cycle is key to providing her with the best care. Remember, each dog is unique, and for specific advice and support, feel free to contact Partners Animal Hospital West Loop at (312) 767-4762 or book an appointment online. Our team is dedicated to supporting the health and happiness of your beloved pet.

About Us

At Partners Veterinary Group, we believe in energizing our team members through shared values, while helping them create value for our clients and patients. Knowing we can help make pets’ and people’s lives better motivates us to continually strive for excellence and love what we do.

Our team consistently works to build educational, supportive, and cooperative work environments that cater to positive experiences and professional growth. We’re constantly evolving, creating innovative ways to deliver cutting-edge medicine to our patients. We equip our teams with tools to enhance their skills and improve their knowledge.