eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2015-04-27 6 1 33 39 2603 article S. Leena Sankari 1 K. M. K. Masthan 1 N. Aravindha Babu 1 C. Priyadharsini 1 Department of Oral Pathology and Microbiology, Sree Balaji Dental College and Hospital, Bharath University, Chennai, India. Oral ulcers are diverse in number. Recurrent aphthous ulceration is the most common form of painful ulcerations in oral cavity. The diagnosis is well defined but the etiology and pathogenesis remains unclear. It is common condition affecting 20% of general population. This review article provides the exact etiology, diagnosis, criteria and treatment of RAS. https://biomedpharmajournal.org/vol6no1/recurrent-aphthous-stomatitis-a-review-2/ Oral Ulcer Recurrent Aphthous Stomatitis