克山病是一种原因不明的地方性心肌病。1935年在黑龙江省克山县农村发生大批青壮年急性发病,并有大批死亡而引起了人们的注意。仅两个月,在克山县西城镇202号村中共285名农民中死亡57人,死亡率相当高。当时曾怀疑是一种烈性传染病,经细菌学检查后予以否定。经解剖证实,本病是一种原因不明的心肌病.于1937年就因地命名 Keshan disease is an unknown cause of endemic cardiomyopathy. In 1935 in Keshan County, Heilongjiang Province, a large number of acute cases of young adults, and a large number of deaths caused the people’s attention. In just two months, 57 of the 285 peasants in the 202 village of Xicheng Town, Keshan County, have died, with a very high mortality rate. At that time it was suspected to be a potent infectious disease which was rejected after the bacteriological examination. Anatomically confirmed that the disease is an unknown cause of cardiomyopathy in 1937, named after