Can e Cigs (eCigarettes) Cause Cancer? Berger Henry ENT Does Vaping Cause Oral Cancer? How Safe Are e Cigarettes? E Cigarettes and Associated Health Risks: An Update on Cancer Potential 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 Is Vaping Worse Than Smoking? Health News Hub Australian researchers have issued one of the strongest warnings yet about vaping, saying a major review of evidence suggests e cigarettes are likely to cause lung and oral cancer. The review found signs