Despite suffering a retained placenta after just giving birth a mother is hooked up to a milking machines and forced back to her place in the milking line. The incidence of retained placenta in healthy dairy cows is 5 to 15%. The problem may be increased by abortion, difficult calving, milk fever, twin births, advancing age of the cow, pre-mature birth, inflamed placenta and various nutritional disturbances. It is normally easy to diagnose a cow with retained placenta by looking at the degenerated, discolored and unpleasant-smelling membranes hanging from the vulva more than 24 hours after calving, one can confirm a case of retained placenta.