What is the definition or description of: infection from a miscarriage?

Bacterial invasion: The remaining fetal products inside the uterus can be infected by bacteria from the vagina, and if not treated immediately can lead to blood borne infection.(sepsis) which can then become "an invasion of the body snatchers" resulting in death.

Septic abortion: The definition is septic abortion. This is an unusual, and typically happens with retained products of conception, when not everything passes or is removed. This can be very dangerous, causing fever, possible blood infection, infertility, or even death in severe cases. Symptoms include fever, bleeding, foul odorous discharge and pain after a miscarriage or abortion.