Eleven cases of non-immune hydrops fetalis (NIHF) are presented. Incidence was 1.8 out of 10,000 births. NIHF became more common than immune hydrops fetalis (1.4/10,000 births). Mortality was of 81% and complications were frequent. NIHF is associated with prematurity, neonatal anoxia, polyhydramnios, hypoalbuminemia and hypoproteinemia. Considerable emphasis must be placed on antenatal diagnosis to achieve a precocious treatment and so improve the present poor prognosis.