Glomerulonephritis is a kidney condition characterized by inflammation of the glomeruli, which are the tiny filtering units within the kidneys. This inflammation can impair the kidneys' ability to filter waste and excess fluids from the blood, potentially leading to symptoms such as blood in the urine, swelling, and elevated blood pressure. It can result from various causes, including infections, autoimmune diseases, and certain medications. Treatment typically focuses on managing symptoms and addressing the underlying cause to prevent kidney damage.