of course not. You must know that whether e-cigarettes cause cancer is not a complicated problem, and relevant scientific conclusions have long been the consensus of authoritative medical institutions and researchers around the world. In recent years, top cancer research institutions and experts have also voiced their voices for e-cigarettes, fighting back against the rumor that “e-cigarettes cause cancer”. The evidence so far is as follows:
E-cigarette “carcinogenic” truth: the user’s cancer rate is less than 0.5% of the cigarette smoker’s cancer rate
According to the World Health Organization’s list of carcinogens, tobacco and second-hand smoke are both class 1 carcinogens (clearly carcinogenic, with a total of 120 species). There are 69 kinds of carcinogens in tobacco, such as nitrosamines, formaldehyde, polycyclic aromatic hydrocarbons, benzene (A) pyrene, etc., most of which exist in the tar and smoke produced by its combustion. In contrast, nicotine is only addictive, not even the last class 4 carcinogens.

At present, most of the mainstream electronic cigarette products on the market use electronic atomization technology and do not contain tobacco, so they can reduce 95% of the harm of cigarettes. Specific to the content of carcinogens, data released by the US Centers for Disease Control and Prevention in July 2020 showed that the content of NNAL in the urine of e-cigarette users was only 2.2% of that of smokers. NNAL is a class 1 carcinogen, a metabolite of nitrosamines, a potent lung cancer-causing factor.
As for another type of carcinogens that everyone is concerned about, carbonyl compounds (such as formaldehyde and acetaldehyde), Gan Wei, a genetic statistics researcher at Oxford University, UK, gave a detailed answer in June 2021. He said that some electronic cigarette products will contain carbonyl compounds, and the content varies with the type of product. Under different experimental environments, the conclusions drawn are also different, and a comprehensive analysis is required instead of generalization.
Taking a comparative study of 13 e-cigarette products as an example, the study showed that the aerosols of 5 e-cigarette products did not contain formaldehyde and acetaldehyde, and the average formaldehyde and acetaldehyde in the aerosols of the remaining 8 e-cigarette products. aldehyde content, 13 times and 807 times lower, respectively, than the average formaldehyde and acetaldehyde content in cigarette smoke. That is, the content of carbonyl compounds in electronic cigarettes is lower than that in cigarettes.
The actual usage of the user is indeed consistent with the experimental conclusion. Research data released by the British Department of Public Health in 2018 shows that the cancer rate of e-cigarette users is only about 0.4% of the cancer rate of smokers, which is less than 0.5%. “E-cigarettes have great potential for harm reduction and can effectively reduce the risk of cancer among smokers.” The Department of Public Health England emphasized in a report published on the UK Government Network (http://GOV.UK).

Cancer research experts from many countries speak together: encourage smokers to switch to e-cigarettes
In recent years, the electronic cigarette industry has developed rapidly, and the “huge harm reduction potential” of electronic cigarettes has been continuously confirmed by international authoritative research institutions. In April 2021, Cancer Research UK issued a document stating that the significant harm reduction effect of e-cigarettes has become a broad consensus among public health institutions and researchers around the world. The promotion and popularization of e-cigarettes can effectively reduce the carcinogenic rate of smoking.

“Scientists are still doing research on the possible health hazards of long-term use of e-cigarettes, but it is important that the levels of carcinogens in e-cigarette aerosols are much lower than those found in cigarette smoke.” American Cancer Society (ACS) Official website wrote. In addition, studies in the United States have shown that the use of electronic cigarettes by cancer smokers who are difficult to quit smoking can reduce the negative impact of smoking on chemotherapy.
As the world’s top cancer physician, David Khayat has undoubtedly seen and endorsed the scientific evidence. The former president of the French National Cancer Institute has been awarded the Commander of the British Empire (CBE) for his contributions to a campaign that has changed the way cancer research and cancer patients are treated around the world.
This time, in his health advice for people aged 35-50, David Khayat emphasized that smokers should consider switching to e-cigarettes: “The key to a happy life is to understand and manage risks, and only by taking small steps can we make Physical health improves.”

However, Cancer Research UK pointed out that before switching to e-cigarettes completely, many smokers will mix cigarettes and e-cigarettes, which cannot reduce harm. Therefore, the Cancer Research Center needs to further explore the factors that affect the choice of smokers and find effective methods to help smokers completely switch to electronic cigarettes.