The dangers of smoking e-cigarettes include harming lung function and increasing the risk of cancer. E-cigarettes are a kind of electronic products imitating cigarettes. Although there is no tar in e-cigarettes, there will still be nicotine, flavorings, solvents such as propylene glycol, etc., which are still harmful to the body in long-term use. And there will also be second-hand smoke, jeopardizing the health of those around you. If you use e-cigarettes for a long period of time, the nicotine in them will make the user dependent, and it will also cause some damage to the lungs, affecting the normal lung function, and may produce coughing, coughing, and other uncomfortable symptoms. In addition, e-cigarettes may also produce some carcinogenic substances in the process of use, increasing the risk of cancer in this group of people. Smoking e-cigarettes and smoking traditional cigarettes are both harmful to health, and it is recommended to quit smoking as early as possible to avoid its damage to the body.