Here's a breakdown of the process:
1. Heat Cycle: Female dogs typically have heat cycles that occur every 6-9 months. This cycle is characterized by hormonal changes that prepare the dog for potential pregnancy.
2. Bleeding: The bleeding is caused by the shedding of the uterine lining, known as "proestrus," which is the first stage of the heat cycle. This bleeding usually lasts 5-10 days.
3. Mating: A female dog is fertile for a short period within her heat cycle, typically around the time she stops bleeding.
4. After Mating: The bleeding will continue until the end of the heat cycle, regardless of whether the dog has mated or not.
Important Note: If you're concerned about a female dog's bleeding or believe something may be abnormal, it's crucial to consult with a veterinarian. They can help you determine if the bleeding is normal or if there are any underlying health issues.