Inflammation of the endometrium (lining) of the uterus due to a bacterial infection is called Metritis. This usually occurs within a week after a dog has given birth. It can also develop after an abortion, miscarriage, or after a non-sterile artificial insemination. The bacteria that are most often responsible for infection of the uterus are gram-negative bacteria like Escherichia coli. The infection may lead to sterility. If left untreated it can also lead to septic shock and could be fatal.
Symptoms would include a foul smelling discharge from the vulva, discharge with pus, or pus mixed with blood, swollen abdomen, dehydration, dark red gums, fever, reduced milk production, depression, lack of appetite, neglect of puppies, and an increased heart rate.
