For a long time, both the state media and folklore have always believed that Lu Xun died of tuberculosis. In fact, as early as October 1949, on the occasion of commemorating the 13th anniversary of Lu Xun's death, Mr. Zhou Jianren questioned the cause of Lu Xun's death in the article "Lu Xun's illness was suspected to be delayed by Sudou"[1]。 However, this has not attracted much attention. In 2001, Mr. Zhou Haiying, son of Lu Xun, published the article "About the Death of Father" in Harvest magazine[2]Reiterating the cause of Lu Xun's death, naming and accusing Sudou, a Japanese doctor who treated Lu Xun, was widely spread in the media at home and abroad, causing widespread concern among Chinese people.