However, I can provide you with information about when female dogs stop coming into heat.
On average, female dogs stop coming into heat (go through menopause) around the age of 6-8 years old. This can vary based on breed, individual dog, and other factors.
Here are some points to consider:
* Breed: Some breeds, like smaller dogs, may go through menopause earlier than larger breeds.
* Individual dog: Each dog is different, and some may experience their last heat cycle earlier or later than the average.
* Health: A dog's overall health can also affect the age at which they go through menopause.
It's important to consult your veterinarian for advice on your dog's specific situation. They can provide information based on your dog's breed, age, and medical history.