Ulcers in the mouth may be recurrent aphthous ulcers, the specific etiology is not clear, and its onset may be related to the lack of vitamin B₁₂, as follows.
Vitamin B₁₂ can promote the repair and regeneration of epithelial cells of the skin and mucous membranes and endothelial cells of blood vessels, accelerate the growth and repair of tissues, and prevent the infection and deterioration of wounds, and the deficiency of vitamin B₁₂ may lead to the occurrence of recurrent aphthous ulcers.
It was found that serum vitamin B₁₂ levels were significantly lower in patients with recurrent aphthous ulcers compared with the healthy population, and furthermore, treatment with vitamin B₁₂ resulted in the relief of symptoms of recurrent aphthous ulcers, reduced pain, fewer recurrences, and prolongation of the ulcer-free period, which suggests that there is a correlation between vitamin B₁₂ deficiency and the occurrence of recurrent aphthous ulcers in the oral cavity.
If the symptoms of oral ulcers are severe or persist without relief, it is recommended to visit the hospital and receive early professional treatment.