地方性氟骨症的主要临床表现是腰、腿疼痛,欲称“腰腿疼”病。河北省蔚县永安疃村的氟骨症患者多数首先反映出的是足跟疼痛。该村为山区间小盆地,饮水含氟量4.8mg/L,属饮水型氟中毒重病区,调查329人,查出氟骨症患者119人,临床症状296人次;对照病区王汉庄村原饮水含氟量21.5mg/L,1973年改饮含氟量2.2mg/L饮水,调查850人,查出氟骨症病人203 The main clinical manifestations of endemic fluorosis are lumbar and leg pain, which is to be called “low back pain”. Most of the patients with skeletal fluorosis in Yong’an County, Yuxian County, Hebei Province, are the first to report heel pain. The village is a mountainous area of ​​small basin, drinking water fluoride content 4.8mg / L, is a drinking water fluorosis poisoning area, 329 people were investigated, found in patients with skeletal fluorosis 119 people, clinical symptoms 296 person times; Drinking water fluoride content of 21.5mg / L, in 1973 to change the amount of fluoride 2.2mg / L drinking water, survey 850 people, detected skeletal fluorosis 203