Kidney disease is one of the most serious and widespread conditions in the world, but the available statistics do not represent the reality of the spread of the disease, depending. This is dependent on the cases that are officially diagnosed in clinics, health centres and hospitals. It is now the eighth leading cause of death among women, accounting for 600,000 deaths per year. Chronic kidney disease leads to major complications such as kidney failure and early death.

Renal Failure: The term refers to the failure of renal secretion functions. When renal function decreases to less than 15 ml/min in the performance of its function, the disease occurs when renal function is interrupted for a period of at least three months and is usually characterized by a low glomerular filtration rate. It is divided into acute renal failure (ARF), and chronic renal failure (CRF). And, The most important causes of kidney failure are high blood pressure, and diabetes, followed by glomerulonephritis, hereditary diseases, kidney tumours, kidney stones, lupus erythematosus, gout and other diseases such as renal nephropathy. The negative outcomes of renal failure can be reduced by conservative or compensatory treatment such as peritoneal dialysis, blood washing or kidney transplantation.

Renal failure affects the function of the thyroid gland in many ways, including low levels of thyroid hormones, hormone metabolism in the surrounding tissues, their association with the carrier proteins, and increased iodine storage in the thyroid gland.