Will smokers definitely get lung cancer?

Among various human cancers, the causes of most of them are still not completely clear. However, the cause of lung cancer has been recognized by scholars through experimental and clinical research and a large number of population surveys. It is closely related to smoking and air pollution. So, will smokers definitely get lung cancer? How much higher is the probability of smokers getting lung cancer than non-smokers? For these questions, today we will ask experts to tell us in detail.

Smokers are more likely to get lung cancer, but this does not mean that all smokers will get lung cancer and non-smokers will not get lung cancer. However, studies have shown that the more you smoke and the longer you smoke, the higher the incidence of lung cancer. The incidence of lung cancer is even higher when you smoke a lot in an indoor or outdoor environment with air pollution. A large number of population surveys have shown that the main cause of 90% of male lung cancer and 79% of female lung cancer is smoking. The incidence of lung cancer in long-term smokers is 20-40 times that of non-smokers.

According to statistics, one-third of adults in the world are smokers, and the proportion of female smokers is increasing. In my country, more than 60% of male adults and about 25% of medical personnel are smokers. It is said that one out of every three smokers in the world is Chinese. This is why the incidence of lung cancer in my country has risen sharply in the past 50 years.

Studies have shown that the risk of lung cancer for heavy smokers (more than 15 cigarettes a day) will drop significantly after they reduce their smoking by half. The mortality rate of lung cancer will drop after they stop smoking. The incidence of lung cancer will drop to roughly the same as that of non-smokers after quitting smoking for more than 10 years.

In addition, if lung cancer patients continue to smoke, it will increase the difficulty and complications of treatment, while stopping smoking may prolong survival and reduce the recurrence rate of lung cancer. Other harmful effects of smoking include causing or aggravating heart disease, tracheobronchitis, emphysema, etc., and also increasing symptoms such as coughing and sputum. Some people estimate that by 2025, about 10 million people will die from smoking-related diseases worldwide, mainly lung cancer. The smoking rate among males in the United States has dropped significantly in the past 30 years. As a result, the incidence curve of lung cancer has shown a downward trend in recent years, but the incidence of lung cancer in women has increased in recent years, which is obviously related to the increase in the smoking rate among females in recent years.

Expert Tips: Smoking is harmful to health. For those who are not well-off, quitting smoking is equivalent to adding a considerable amount of family income. Elders who do not smoke or quit smoking are good role models for the next generation. If the smoking rate of our people decreases year by year and air pollution improves year by year, then in a few years, the incidence and mortality of lung cancer will decrease. The above content is for reference only. If you have other questions, please consult our online experts for more information.

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