Are mouth ulcers always caused by a lack of vitamins?

The occurrence of oral ulcers is not entirely due to vitamin deficiency, as vitamin deficiency is only one possible factor. Oral ulcers may be related to multiple factors, including: 1. Vitamin deficiency: Particularly deficiencies in B-complex vitamins, vitamin C, and vitamin E, which play important roles in maintaining oral mucosal health. Deficiencies in these vitamins may increase the risk of developing oral ulcers. 2. Other factors: Such as genetic, immune, psychological, dietary, and external stimulatory factors, may also contribute to the development of oral ulcers. For example, prolonged mental stress, anxiety, or depression, as well as nutritional imbalances caused by picky eating habits, may trigger oral ulcers. Therefore, treatment of oral ulcers should take multiple factors into account. Prompt identification of the underlying cause and appropriate treatment measures are necessary. At the same time, maintaining good lifestyle habits and a balanced diet can help prevent recurrent episodes of oral ulcers.