This scoping review aims to identify the available evidence concerning the clinical and psychosocial impacts of the communication of oral potentially malignant disorders (OPMDs), and to map and analyze knowledge gaps regarding truth-telling about risk factors, malignant transformation, treatment, and follow-up approaches. Search strategy was performed using electronic databases (Medline/PubMed, Scopus, Embase, and Web of Science) and one grey literature database (Google Scholar). Studies focused on communicating the diagnosis of OPMDs and the patients' perceptions were included. Study selection and data extraction were performed by two authors in a two-phase process. Five publications were included in the qualitative analysis. Each publication involved a different study design, study population, types of OPMDs, and results on the important aspects of the professional-patient communication about the diagnosis of OPMDs. Although specific protocols on OPMDs communication have not yet been reported, there is an elevated interest on this topic since the strategies and skills on professional communication could provide better clinical outcomes to the patients. A list of recommendation strategies on how to communicate an OPMD diagnosis is proposed; however, future studies are still needed to design specific communication protocols for OPMD.