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陕西省克山病和大骨节主要分布在铜川以北。延安以南的子午岭和黄龙山山区,以及渭北的林由山区和黄土残源地区。从患区的外环境可以看到,在哪些属于森林草原地带,植被良好的自生林区,抑郁闭塞的还原环境,以及有机物质相对富集的土壤和水源。就容易发生地方病,尤其是克山病。
Keshan disease and Kashin section in Shaanxi Province are mainly distributed in the north of Tongchuan. Zi’nan Mountain and Huanglong Mountain in the south of Yan’an, and the forest from Yulin and the loess remnants in Weibei. From the external environment of the affected area, it can be seen in what belongs to the forest grassland zone, the vegetation of good volunteer forest area, the depressed environment of the occlusion, and the relatively rich organic matter soil and water. It is prone to endemic diseases, especially Keshan disease.