What is hardness of the kidney?

The medical term for hardening of the kidneys is renal fibrosis, which is the excessive growth of connective tissue in the kidneys, leading to scarring and loss of kidney function. It can be caused by various factors, including chronic inflammation, kidney disease, infections, and certain medications. Renal fibrosis can result in decreased urine output, fluid retention, high blood pressure, and progressive kidney failure if not managed appropriately.