Causes of oral ulcers

Oral ulcer is always considered to be related to recurrent aphthous ulcer. At present, the etiology is not clear. Some studies believe that it is related to immune, genetic and other factors. Digestive system diseases such as gastric ulcer, hemorrhoids ulcer, colitis, etc. can also induce recurrent aphthous ulcer. At ordinary times, appropriate vitamins should be supplemented to develop healthy living habits.