Excess estrogen may induce lung cancer, but the chance is not particularly large. According to the research in the latest Lancet Oncology, estrogen in the body will lead to the action of some cancer-causing factors, which will lead to an increase in the incidence rate of lung cancer in women, that is to say, excessive estrogen may induce lung cancer, but the chance is not particularly large, and it should be analyzed in combination with other aspects of the situation. Clinically, the occurrence of lung cancer is mainly considered to be related to factors such as long time smoking, living in toxic environment, etc. Estrogen is only one of the factors, and it is not a very common factor, which is more common in female population, so we need to do a good job in related prevention work.