Table 3.

Causes of hypophosphatemic rickets.

Hypophosphatemic Rickets	Causes
Nutritional/reduced intestinal intake/absorption of phosphates	Malnutrition
	Prematurity
	Phosphate chelators Administration of elemental formulas Total parental nutrition Gastrointestinal nutrition (e.g., short bowel syndrome) Cellular re-distribution Insulin therapy in diabetic ketoacidosis Acute respiratory alkalosis Re-feeding syndrome
Increased renal phosphate loss	FGF23-related hypophosphatemia
	Hypophosphatemic rickets with hypercalciuria
Renal proximal tubule dysfunction/Fanconi’s syndrome	Oculocerebrorenal syndrome
	X-linked recessive nephrolithiasis
	Infantile cystinosis Tyrosinemia Hepatolenticular degeneration