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花垣县位于湖南省西部,在川、黔、湘交界处,是一个山区县,海拔220～1205米,年平均气温16℃,降雨量1420.9mm,平均日照1324.5小时。以农业为主。当地居民的主粮为玉米、红薯。除县城居民饮自来水外,其它地区居民以饮用山泉水为主。全县面积1108平方公里,人口210380,苗族占78.25％。从防治地方病需要,在1985年进行了一次地方性甲状腺肿流行病学调查。
Huayuan County is located in the western part of Hunan Province. It is a mountain county at the junction of Sichuan, Guizhou and Hunan. It has an elevation of 220-1205 meters and an annual average temperature of 16 degrees Celsius. Its rainfall is 1420.9 mm with an average of 1324.5 hours of sunshine. Mainly agriculture. The staple food of local residents is corn, sweet potato. In addition to drinking water in the county seat residents, residents in other areas to drink spring water-based. The county area of 1108 square kilometers, population 210380, Miao accounted for 78.25%. From the need to combat endemic diseases, an endemic goiter epidemiological survey was conducted in 1985.