尿氟往往随机体摄氟量改变而变化,一般认为尿氟的高低可反映摄氟情况,但也有人报告氟骨症患者脱离病区减少摄氟量后,体内蓄积的氟还会不断排泄,致使尿氟仍高且维持时间较长。在重氟病区采取预防措施降低了摄氟量后,尿氟能否作为预防效果的观察指标,尚有置疑。为此,我们于1986年4月在特重粮食污染型氟病区彭水县小厂乡对氟骨症患 Urinary fluoride is often random body photo fluoride changes in the amount of change is generally believed that the level of urinary fluoride fluoride can reflect the situation, but it was also reported skeletal fluorosis patients from the ward to reduce fluoride intake, the accumulation of fluoride will continue to excrete, Urine fluoride is still high and maintain a longer time. It is questionable whether urine fluoride can be used as an indicator of prophylaxis after preventive measures have been taken to reduce fluoride exposure in areas with heavy fluorosis. To this end, we in April 1986 in the special heavy food-contaminated ward Pengshui County small factory township of skeletal fluorosis