Glomerulonephritis is a kidney condition characterized by inflammation of the glomeruli, which are tiny filters in the kidneys. This inflammation can impair the kidneys' ability to filter waste and excess fluids from the blood, leading to various symptoms such as swelling, high blood pressure, and changes in urine color. The condition can be caused by infections, autoimmune diseases, or other underlying health issues. Treatment often focuses on managing symptoms and addressing the underlying cause, which may include medications or lifestyle changes to support kidney function and overall health.