The analysis of expert practice and scientific research conducted during the last decade show that the greatest number of claims to the correctness of the provision of medical care are made by doctors of surgical specialties, including obstetrician-gynecologists, and, at the same time, inspections for “medical cases”, including profile “obstetrics and gynecology” are complex and time-consuming. The article considers the problem of the unfavorable outcome of medical care in obstetric practice. The questions of etiology, pathogenesis, diagnosis of intrauterine infection (VUI), which largely determines the frequency of perinatal morbidity and mortality, are also analyzed and analyzed questions of the prescription of the pathological process in the amniotic membranes, its role in the formation of fetal death. On a concrete example, expert practice shows how the forensic medical commission, taking into account the data of medical documents, as well as the results of macroscopic and microscopic studies, solves the problem of the immediate cause of antenatal death and establishes the role of intrauterine infection in the death of the fetus, the timing and causes of its formation. The information that is relevant to the practice of forensic medical examinations is presented, which allows us to formulate objective and scientifically substantiated conclusions about the existence of cause-effect relationships between the defects in the provision of medical care and the onset of an unfavorable outcome of medical care in similar cases.