Oral cancer screening.

Screening for oral cancer or pre-cancer (for example, leukoplakia) before a person has any symptoms is intended to find cancer at an early stage. Screening is important because less than 50% of oral cancer patients access services in early stages of the disease. In many lowand middle-income countries, oral cancer screening is performed by dentists and doctors, although training of health professionals and availability of screening vary. Screening is recommended for individuals who chew betel quid, drink heavily, smoke cigarettes, and/or have had a previous diagnosis of oral cancer (WHO, 2016).