Q: What is your opinion on the etiology of leukemia? At present, home renovation is very common, and it also brings the problem of indoor radioactivity and toxic gas pollution, which may be related to the development of leukemia. I am interested in the information on this, especially the relationship between indoor radioactivity or air pollution and leukemia, is there any epidemiological study on this? Shan Yandong: I don’t think there is any epidemiological material on the relationship between home renovation and leukemia, and the media is so hyped up that I hope we don’t jump to conclusions without a rigorous epidemiological investigation. According to my own impression, if the relationship between decoration and leukemia is very close, then the decoration workers are a high incidence of leukemia in the first place, but so far there is no such a feeling among fellow hematologists.