1, unhealthy diet: blisters in the mouth are closely related to diet. Many people like spicy food, which will cause oral injury and fire, and eventually lead to diseases.

2, oral injury: eating hard, indigestible food, it is easy to cause oral mucosal injury, and after oral mucosal injury, it is easy to cause oral ulcers, oral blisters and other diseases. So this kind of food should be reduced.

3, emotional instability, poor sleep quality: this situation is also the main reason for getting angry. Chinese medicine believes that stomach fire, lung fire, liver fire and other exuberant, it will cause mouth sores, gum swelling and pain and other symptoms.

4, other inflammatory effects: some upper respiratory tract infections, oral inflammation, inflammation in other parts of the body are also important factors leading to oral blisters. If there is body inflammation in daily life, it needs to be treated as soon as possible.