The Hellp syndrome defined as the association of micro-angiopathic haemolytic anemia, hepatic cytolysis and thrombocytopenia, correspond to a severe form of gravidic toxemia, combined to manifestations of classic-pre-eclampsia. This retrospective study, conducted over 6 years, concerns 9 cases of Hellp syndrome, including 2 occurring during the immediate post-partum. Only cases where this biological triad was obvious and not associated with manifestations of disseminated intravascular coagulation, were considered in this study. In addition to the usual criteria of gravidic toxemia, the early clinical manifestation occur, in this study, between 28 and 38 weeks of amenorrhea and gastrointestinal manifestations are predominant. The physiopathogenic hypotheses of this syndrome remain variable and management varies depending on the authors. Treatment is that of pre-eclampsia. Medical treatments (steroids, heparin, immunosuppressants,...) are discussed, but severe feto-maternal complications require, most of the time, a surgical approach, depending on the number of pregnancies, the obstetrical conditions, the stage of the pregnancy and the severity of the syndrome.