What is glomerulonephritis?

Glomerulonephritis are inflammatory conditions that affect the glomeruli (small filters in the kidney that help remove waste and excess water from the blood) and small blood vessels in the kidneys. Glomerulonephritis may affect patients in many ways: some feel completely well while others may have severe body swelling if they develop nephrotic syndrome. Untreated kidney inflammation can lead to chronic kidney disease and kidney failure.