What is vitamin D resistant rickets?

Vitamin d resistant rickets is a genetic deficiency of renal tubules. There are two kinds of hypophosphatemia and hypocalcemia. Hypophosphatemia is more common. Vitamin d resistant rickets, also known as familial hypophosphatemia or phosphorus hypophosphatemia rickets, is mainly caused by a mutation in a gene located on the x chromosome, resulting in reduced reabsorption of phosphorus by renal tubules. Intestinal absorption of calcium and phosphorus is not good, blood phosphorus is reduced, generally between 0.65 and 0.97 mmol per liter, calcium and phosphorus deposition is mostly below 30, so his bone is not easy to calcify.