Recurrent oral ulcers are not a precursor to cancer. Oral ulcer is also called recurrent aphtha and recurrent aphtha. Its occurrence is the result of many factors, including local trauma, mental stress, food factors, drug factors, malnutrition, hormone level changes, vitamin or trace element deficiency, systemic diseases, genetic immune factors and microbial factors. These factors may play an important role in the occurrence and development of oral ulcer, such as the lack of trace elements. There are also phosphorus, iron, zinc, folic acid, vitamin B 12 deficiency, malnutrition and so on. Can reduce immune function and increase the possibility of oral ulcer.

The continuous occurrence of oral ulcer shows that a kind of oral mucosal disease called recurrent oral ulcer has been obtained. Its clinical symptoms are mainly yellow, red, concave and painful, that is, the surface of oral ulcer is covered with a yellowish false membrane, and the surrounding mucosa is red and concave, with obvious pain. There are significant individual differences in the etiology of oral ulcer, and the etiology is not very clear at this stage. Studies have shown that it is probably related to some trauma, anxiety, food, medicine, nutritional deficiency, changes in female hormones and lack of vitamins or trace elements, and genetic factors are more critical.

Patients with recurrent aphthous ulcers may have recurrent aphthous ulcers, which can be treated with immune enhancers. Patients can supplement nutrients and trace elements, eat more fruits and vegetables, minimize stimulating factors, do not stay up late, do not smoke, and keep their teeth clean daily.

Although oral ulcers can't be prevented, it is found that increasing the intake of vitamin B components and trace elements such as iron, zinc and copper can reduce the number of ulcers to a certain extent, and regular work and rest and psychological adjustment can also reduce the occurrence of ulcers. Patients can try it. When oral ulcer occurs, everyone's physique is different and its inducing factors are not exactly the same. Every time, we should carefully observe the inducing factors of oral ulcer, try to avoid the onset of inducing factors in daily life, so as to prolong the intermittent period of oral ulcer.