Glomerulonephritis is a condition where there is inflammation in the kidneys. It is a type of kidney inflammation that occurs when the glomeruli (small filters in the kidneys) become inflamed. The glomeruli are responsible for filtering waste products and excess fluids from the blood and eliminating them from the body through the urine.
When the glomeruli become damaged or inflamed, they may not function properly, leading to the buildup of waste products in the body and potentially causing a number of health problems.
This can occur suddenly or gradually. IgA nephropathy and lupus nephritis are examples of glomerulonephritis that affect just the kidneys; however, glomerulonephritis may also occur as part of a more systemic illness, such as systemic lupus erythematosus or ANCA vasculitis. However, prolonged and untreated kidney inflammation is associated with permanent kidney damage, and immediate glomerulonephritis treatment is needed to prevent this.