Let's Chat about Vaping Can vaping cause mouth ulcers? Vaping can cause canker sores or mouth ulcers There are many factors that can contribute to mouth ulcers, also known as canker sores. Canker sores are small, painful ulcers that develop inside the mouth. This JAMA Patient Page describes the types of canker sores and how they can be treated. https: ja.ma 4g2Qc3u E cigarette vapour may prevent mouth ulcers from healing Daily Mail Online Incidence of Recurrent Aphthous Ulcer among Vape and Cigarette Smokers European Journal of Dental and Oral Health What Causes Mouth Ulcers? Everything You Need To Know