本文报道揭阳县地方性氟中毒的流行强度及其危害程度。致病的主要原因是饮用高氟水,病区水氟含量与氟中毒患病率正相关,属水型氟中毒病区。病区里的高氟水点均为深层井水,提出改用河水或浅层水作为饮用水源水的必要。分析了病区和非病区人群尿氟的差异,提示尿氟可作为氟中毒诊断的参考指标。 This article reports the prevalence of endemic fluorosis in Jieyang County and the degree of its harm. The main reason for the disease is drinking high-fluoride water, ward fluoride content of water is positively correlated with the prevalence of fluorosis, a water-based fluorosis area. High fluoride water in the ward are deep well water, put forward the need to switch to river or shallow water as the source of drinking water. Analysis of the difference between urinary fluorosis in ward and non-ward population suggests urine fluoride can be used as a reference index for the diagnosis of fluorosis.