Glomerulonephritis is a kidney condition that involves inflammation of the glomeruli, which are tiny filters in the kidneys. This inflammation can affect the kidneys' ability to filter waste and excess fluids from the blood, potentially leading to symptoms like swelling, high blood pressure, and changes in urine color. The condition can be caused by various factors, including infections, autoimmune diseases, and certain medications. Treatment often focuses on managing symptoms and addressing the underlying cause, which may involve medications, dietary changes, or in severe cases, dialysis or kidney transplantation.