Unfortunately, as Andreas Altenberg and co-authors point out in a current review on the therapy of aphthous ulcers (Dtsch Arztebl Int 2014; 111: 665–73), the etiology of these lesions is unclear.

People in South Korea who were diagnosed with recurrent aphthous stomatitis (RAS) were at a much greater risk for developing several autoimmune diseases, according to a study published on October 3 in ...

Canker sores, also called aphthous ulcers, occur in the lining of your mouth, the Cleveland Clinic says. The sores can form at the base of your gums, on or under your tongue, inside your lip or on ...

The ulcer had developed 3–4 weeks ago without any apparent initiating event such as trauma. He described a pricking sensation and an increased soreness at the tongue tip area upon touching.

Methods Sample Collection and DNA Extraction Bacterial samples were taken from the surface of normal oral mucosa and aphthous ulcers from 24 RAS patients in the Second Hospital of Shandong ...