Causes of hyperphosphatemia (abnormally elevated phosphate levels) include excessive dietary intake of phosphate, overuse of laxatives or enemas that contain phosphate, kidney disease or impaired kidney function, hypoparathyroidism,
hypocalcemia (calcium deficiency), magnesium deficiency (severe magnesium deficiency is one of the
causes of hypoparathyroidism), too much vitamin D in the body, healing fractures, severe infections, acromegaly, rhabdomyolysis, tumour lysis syndrome, untreated diab