Objective: To describe the clinical and laboratory features and pregnancy outcome in pregnant women with proteinuria. Materials and methods: A prospective, descriptive study including all pregnant women with proteinuria>3.5g/24g, followed at the Department of Nephrology, Cho Ray Hospital from February 2002 to November / 2009.Results: 55 pregnant women, aged 17 to 41 underwent clinical and laboratory investigations and were followed to 3 months postpartum.12.7% of them were found to have previous history of kidney diseases.