The fetal death of the pups in the female dog’s belly will have the following symptoms: the female dog will have a loss of appetite, poor condition, etc.; if the owner finds that green liquid is flowing out of the female dog’s genitals, it is fetalization; if it is not possible to determine whether the dog is stillborn You can put your hand on the mother dog's belly. If the live fetus changes obviously, if it doesn't move, it means it is stillborn.