Idiopathic membranoproliferative glomerulonephritis is primarily a disease of children, adolescents and young adults. It is uncommon before the age of six years and majority present in the age group of 8-16 years. There is a small female preponderance. Renal failure occurs in 50% by 10 years and 90% in 20 years. The disorder is classified into Type I, II or III, based on histology. There is a generalized increase in mesangial cells and matrix resulting in accentuation of glomerular lobulation. The glomerular capillary walls are thickened and, in some areas, duplicated because of interposition of mesangium between the glomerular basement membrane and the endothelial cell. Majority presents with nephrotic syndrome and some present with ANS picture. Some may present with asymptomatic hematuria with or without proteinuria.