Cigarette smoking may lead to the occurrence of certain cancers, such as lung cancer, oral cancer, throat cancer and so on.
Cigarettes contain a variety of carcinogenic substances. Long-term smoking will not only cause symptoms such as asthma and coughing, but also may cause lung cancer and other malignant tumors in serious cases.
The earlier you start smoking, the longer you smoke and the more you smoke, the higher the chance of lung cancer. Most lung cancer patients have a history of smoking, and the probability of lung cancer in smokers is several times higher than that of non-smokers.
Smoking not only leads to lung cancer, but also oral and throat cancers, because the smoke tar in cigarettes is chemically carcinogenic, so smoking causes a higher risk of cancers in the oral and throat areas.
Smoking reduces the activity of killer cells and weakens the body’s function of monitoring, killing and removing tumor cells, all of which aggravate the risk of smoking-induced cancer.
It is recommended to quit smoking to avoid the harm caused by long-term smoking to oneself as well as others, and to increase the incidence of cancer.