Health Risks of E Cigarettes New research suggests that vapes are likely to cause oral and lung cancer. Read about the study via the link in the comments. Use of e cigarettes after quitting smoking increases lung cancer risk Cancerworld Magazine E Cigarettes and Breast Cancer: Is Vaping Really Safer? E Cigarettes Promote Macrophage Tumor Cells Crosstalk: Focus on Breast Carcinoma Progression and Lung Metastasis