What causes long-term recurrent oral ulcers?

The causes of long-term recurrent oral ulcers are multifaceted, mainly including the following points: 1. **Deficiency of vitamins and trace elements**: Long-term selective eating or picky eating can lead to deficiencies in B-complex vitamins, vitamin C, zinc, and other trace elements in the body. These deficiencies affect the normal renewal of oral mucosa, thereby triggering recurrent oral ulcers. 2. **Genetic factors**: Oral ulcers have a certain degree of heredity. If parents suffer from recurrent oral ulcers, the probability of their children developing this condition increases. 3. **Psychological factors**: Long-term anxiety, depression, and other states of mental stress can affect the body's immune and endocrine systems, leading to recurrent outbreaks of oral ulcers. 4. **Local trauma**: Sharp tooth cusps or ill-fitting dental restorations within the oral cavity may repeatedly irritate the mucosa, causing traumatic oral ulcers. If you have any concerns, please consult a relevant healthcare professional.