The cancer-causing rate of smoking is relatively high, but there is no clear data on what the cancer-causing rate of smoking is. Smoking may cause lung cancer, esophageal cancer, laryngeal cancer, and so on. According to the published conclusions obtained from a variety of tumor studies and epidemiological surveys, the carcinogenicity rate of smoking is very high. Smoking is a major cause of lung cancer, especially in people with a family history of lung cancer, which significantly increases the incidence of cancer. Smokers are 13 times more likely to develop lung cancer than non-smokers, and about 85% of lung cancer deaths are caused by smoking. Smoking can cause the death of natural killer cells, which in turn weakens the body’s function of monitoring, removing and killing cancer cells, thus explaining that smoking is a high-risk factor for the development of cancer cells. In addition, clinical studies and animal experiments have found that the carcinogenic substances of tobacco can also affect the fetus through the placenta, increasing the incidence of cancer in the offspring. Smoking increases the chances of cancer and is responsible for the development of many malignant tumors. Smoking in public places also increases the chances of cancer in other people. For the sake of your own health and the health of those around you, you should quit smoking as soon as possible.