What is the cause of oral ulcer?

Mouth ulcers always develop, which are mostly related to diet. For example, you usually like to eat spicy and stimulating foods. Secondly, when you are under too much mental stress and often stay up late, you are also prone to develop mouth ulcers. In addition, when the body lacks trace elements or vitamins When you are deficient, you can easily develop mouth ulcers. Drinking plenty of water and eating more vegetables and fruits in life can prevent the occurrence of mouth ulcers.