Chronic kidney disease is the slow loss of kidney function over time. The main function of the kidneys is to remove wastes and excess water from the body.
Congenital nephrotic syndrome is a disorder passed down through families in which a baby develops and swelling of the body. Congenital means it is present from birth. However, this group of disorders also includes nephrotic syndrome that occurs in the first 3 months of life. See also: