The two main culprits behind kidney disease are diabetes and high blood pressure, which account for two-thirds of all CKD cases.

Other conditions that affect the kidneys are:

• Glomerulonephritis, a group of diseases that cause inflammation and damage to the kidney's filtering units. These disorders are the third most common type of kidney disease.
• Inherited diseases, such as polycystic kidney disease, which causes large cysts to form in the kidneys and damage the surrounding tissue.
• Malformations that occur as a baby develops in its mother's womb. For example, a narrowing may occur that prevents normal outflow of urine and causes urine to flow back up to the kidney. This causes infections and may damage the kidneys.
• Lupus and other diseases that affect the body's immune system.
• Obstructions caused by problems like kidney stones, tumors or an enlarged prostate gland in men.
• Repeated urinary infections.