If there is swelling in the cheek or tongue, it may be caused by biting or scraping the local mucosa, especially if there are misaligned teeth in the mouth or sharp tooth tips in the mouth, which can often bite or scrape the buccal mucosa, which can easily cause local breakage of the mucosa, or even blisters and blood blisters. In this case there is a sudden feeling of swelling in the mouth, usually this situation does not require special treatment, in general the blisters and blisters can be absorbed on their own, but to actively treat dental disorders. A swollen piece of flesh inside the mouth may also be caused by a deficiency of vitamins and trace elements in the body, resulting in ulcers in the oral mucosa, which can cause inflammation of the mucosa and a feeling of redness, swelling and pain in the mucosa. If the mucous membrane on the tooth bed is swollen, it means that the tooth may be suffering from periodontitis, periapical inflammation, and if the swelling is at the very end of the tooth bed, it may be caused by wisdom tooth pericoronitis.