Retrospective evaluation of percental frequency of pathological data gained by prepartual monitoring in pregnancies at risk of 180 small for gestational age infants and 130 eutrophic ones at term (postnatal classification). Parameters of interest were continuous maternal gain of weight, monthly progress of the size of the uterus, continuous ultrasomic cephalometria, maternal urinary estriol and serum heat stable alkaline phosphatase as well as amnioscopia and cardiotokographia with and without oxytocin challenge test. -- It seems that there is a significant better prediction of fetal retardation with the help of common clinical methods as well as with ultrasonic and that they are superior to the examined biochemical, cardiotocographical and amnioscopical parameters. With regard to possible additional disturbances of the fetoplacental unit--especially of respiratory placental function--in suspected intrauterine retardation the complete monitoring program should be taken.