Renal angina is a medical term used to describe the chest pain and discomfort experienced by patients with chronic kidney disease. This condition is caused by the narrowing of the renal arteries that supply blood to the kidneys, leading to reduced blood flow and inadequate oxygenation of the kidney tissue. Other terms used to describe renal angina include renal ischemia, renal artery stenosis, and renovascular hypertension. Oftentimes, these synonyms are used interchangeably by medical professionals to refer to the same condition. Treatment for renal angina may include medication to manage blood pressure and improve blood flow to the kidneys, as well as surgery to restore blood flow to the affected area.