Why wont the dog let puppies nurse?

There are several reasons why a dog might not let its puppies nurse:

* Mastitis: Mastitis is a bacterial infection of the mammary glands. It can cause the dog to feel pain and discomfort when her puppies try to nurse.

* Low milk production: If the dog is not producing enough milk, her puppies may not be able to get enough to eat. This can lead to the dog rejecting her puppies or not letting them nurse.

* Stress: Stress can cause a dog to stop producing milk or to reject her puppies. Stress can be caused by a variety of factors, such as a change in environment, a new baby in the house, or the death of a loved one.

* Puppy behavior: Sometimes, puppies can behave in a way that makes it difficult for their mother to nurse them. For example, they may bite or scratch their mother's nipples, or they may try to nurse too frequently. This can lead to the dog rejecting her puppies or not letting them nurse.

If you are concerned about your dog not letting her puppies nurse, it is important to talk to your veterinarian. They can help you determine the cause of the problem and recommend the best course of action.