没有标准或常规的口咽癌的筛选试验。在牙科诊所可以做口腔癌的筛查,因为白斑病(白色斑块)或红斑病(红色斑块)可能是癌前病变。可应用甲苯胺蓝染色法。染色深的区域更有可能癌变,需行活检。[51]Epstein JB, Silverman S Jr., Epstein JD, et al. Analysis of oral lesion biopsies identified and evaluated by visual examination, chemoluminescence and toluidine blue. Oral Oncol. 2008;44:538-544 (erratum in: Oral Oncol. 2008;44:615).http://www.ncbi.nlm.nih.gov/pubmed/17996486?tool=bestpractice.com美国国家癌症研究所已经为医疗人员建立了无症状患者的相关指南。[52]National Cancer Institute. Oral cavity and oropharyngeal cancer screening–for health professionals (PDQ®). July 2015. http://www.nci.nih.gov (last accessed 4 August 2016).http://www.cancer.gov/types/head-and-neck/hp/oral-screening-pdq#section/all