PIP: The reported rate of maternal mortality in Hong Kong fell from 45/100,000 births in 1961 to 5/100,000 in 1985. The most commonly reported cause of maternal mortality over the period was hemorrhage during pregnancy and childbirth. Other major causes of maternal mortality included pre-eclampsia and ectopic pregnancy. Reviewing annual departmental reports of the Director of Medical and Health Services in Hong Kong over the period 1986-90, the authors found 15 reported maternal deaths and 357,297 total births for a maternal mortality rate of 4/100,000 total births. Eight deaths were due to obstetrical pulmonary embolism, five from hemorrhage during pregnancy and childbirth, and two due to pregnancy with abortive outcome. Although Hong Kong has a low rate of maternal mortality by international standards, it is necessary to monitor it and notice changes in causes so that appropriate action may be taken when needed. The authors discuss potential rationale for the predominance of pulmonary embolism observed in this recent study.