Glomerulonephritis (GN) is a condition involving inflammation of the glomerulus, which plays an important role in the filtration of blood into the kidney. If the glomerulus becomes inflamed and damaged, there can be a decline in kidney function leading to chronic kidney disease (CKD). This content provides a deep dive into the dynamics of the GN market, examining the management of GN patients from the perspective of nephrologists. We focus on how GN disorders such as immunoglobulin A (IgA) nephropathy, focal segmental glomerulosclerosis (FSGS), lupus nephritis, and idiopathic membranous glomerulonephritis (IMGN) are being treated in the United States today and on the factors behind those treatment decisions.