E cigarettes are not a healthier alternative to cigarettes. They contain nicotine and many harmful ingredients that can cause cancer and heart disease. Since these products are relatively new, we don't know all Lung cancer risks persist with e cigarette use after quitting tobacco smoking Smoking cigarette cancer : 33 mille images vectorielles de stock et images vectorielles Shutterstock Can Vaping Cause Lung Cancer? Here's What We Know.