Retained placenta: If the placenta is not fully expelled after birth, it can cause ongoing bleeding. Retained placentas can also lead to infection and other health problems.
Uterine rupture: A uterine rupture is a serious condition in which the uterus tears, causing internal bleeding. This can occur during labor or shortly afterward.
Trauma: If the dog sustained any injuries during labor or birth, this could also lead to bleeding.
Blood clotting disorder: Some dogs may have a blood clotting disorder that can cause excessive bleeding after birth.
If your dog is bleeding heavily after giving birth, it is important to take her to a veterinarian as soon as possible. The vet will be able to determine the cause of the bleeding and provide appropriate treatment.