成人体内总磷量为700～800 g,大部分存在于骨骼之中,少部分存在于肌肉等软组织中,仅微最位于细胞外液。磷为与细胞结构和功能、骨的钙化以及尿中酸性物质排泄有关的重要成分。正常进食者每天可摄入磷800～1 200 mg。其85％在空肠吸收。磷经肾脏排泄,正常人每天尿中排出约800 mg。临床所测之血磷是指血清中无机磷酸盐所含的磷,正常值在3～5 mg/dl。近年来,低磷酸盐血症的报告有增多之势。据称,在综合医院中低磷盐的发生率达2％。为此,就其诊断和治疗近况作一综述。病因与发病机理一、磷的摄入不足及吸收减少:主要见于饥饿、维生素缺乏、肠吸收不良综合征、胰腺功能不全、胆汁缺乏、肠道细菌生长过度、肠切除、肠短 The body of the total amount of phosphorus in adults is 700 ~ 800 g, most exist in the bones, a small part of the presence of muscle and other soft tissue, only the most micro-extracellular fluid. Phosphorus is an important component of cellular structure and function, calcification of the bone, and excretion of acidic substances in the urine. Normal diet daily intake of phosphorus 800 ~ 1200mg. 85% of its absorption in the jejunum. Phosphorus excreted by the kidneys, normal urine excreted about 800 mg per day. Clinical test of phosphorus refers to the phosphorus contained in the serum inorganic phosphate, the normal value of 3 ~ 5 mg / dl. In recent years, the report of hypophosphatemia has increased. Allegedly, the incidence of low-phosphorus salt in general hospitals up to 2%. To this end, its diagnosis and treatment of the current situation is reviewed. Etiology and pathogenesis First, lack of phosphorus intake and reduce absorption: mainly seen in hunger, vitamin deficiency, poor malabsorption syndrome, pancreatic insufficiency, lack of bile, intestinal bacterial overgrowth, intestinal resection, intestinal short