Kidney ultrasound is performed to evaluate kidney disease and blockage of the urinary system. Aorto-renal angiography also aids in the diagnosis of many renal vascular diseases. Renal biopsy is useful in identifying intrarenal causes of AKI. Chronic kidney disease: In most cases, kidney function begins to deteriorate over the years, which is actually a good thing because it can help with early detection and subsequent treatment. Additionally, diet and lifestyle changes can improve kidney function. Chronic kidney failure (CKD) or chronic kidney disease (CKD) is caused by a progressive and gradual loss of kidney function. Symptoms are nonspecific and may include loss of appetite and general illness. The most common causes of CKD are • diabetes mellitus • hypertension or high blood pressure • glomerulonephritis is a group of diseases that cause inflammation and damage to the kidneys. • hereditary diseases such as polycystic kidney disease. • malformations during pregnancy. • lupus and other similar diseases. affecting the body's immune system.• Kidney stones or enlarged prostate in men.• Recurrent urinary tract infections. Symptoms of kidney failure include: • Vomiting • Weight