Tongue ulcers may be caused by endocrine disorders, psychiatric factors, vitamin deficiencies, and genetic factors. 1. Endocrine disorders: tongue ulcers may be caused by endocrine disorders, if the human body is in a state of endocrine disorders for a long time, it is very likely to lead to hormonal changes in the human body to induce ulcers. 2. mental factors: mental factors are also one of the factors affecting tongue ulcers, mental stress, depression, tension and irritability of people prone to tongue ulcers. 3. Vitamin deficiency: lack of B vitamins (especially vitamin B2) and vitamin C will also increase the chance of ulcers, it is worth noting that if the body in the case of zinc deficiency will affect the healing of ulcers, so supplementation of vitamins after the effect is not good, we should consider whether the lack of zinc. 4. Genetic factors: If both parents have recurrent ulcers, their children are more likely to develop the disease than the general population. It is recommended that if a patient develops tongue ulcers, he or she should go to a specialist in a timely manner and follow the doctor’s instructions for systematic treatment.