口腔溃疡是口腔黏膜疾病中的常见病、多发病,发病原因复杂,可能与局部创伤、精神紧张、食物、药物、激素水平改变、免疫力下降及维生素或微量元素缺乏等有关,具有病程长、反复发作、症状顽固等特点,一旦发病,患者极其痛 Oral ulcer is a common disease in oral mucosal disease, frequently-occurring disease, the cause of the complex, may be related to local trauma, mental stress, food, drugs, hormone levels change, decreased immunity and lack of vitamins or trace elements, etc., Repeated attacks, stubborn symptoms and other characteristics, once the disease, the patient is extremely painful