Glomerular disease, or glomerulonephritis, is the inflammation of the glomeruli, small filters in your kidney that carry excess fluid and waste from blood into the urine. The condition can be acute (comes on quickly) or chronic (happens over time), with causes including various bacterial or viral infections and immune diseases, like lupus. Symptoms can range from pink or reddish colored urine (from red blood cells) and foamy urine (too much protein) to fatigue from kidney failure.