Common causes of swollen flesh at the end of the teeth may include gingivitis, periodontitis, wisdom tooth pericoronitis, and other diseases. 1. Gingivitis: generally related to dental calculus, plaque stimulation, patients may show as the meat at the end of the teeth is swollen, as well as red gums, bleeding gums and other symptoms. 2. Periodontitis: it may be caused by plaque stimulation, tooth bite injury, food impaction and other factors. So it will cause the flesh at the end of the teeth to swell up, and in addition, the patient will be accompanied by symptoms such as loose teeth, gap between the teeth become bigger. 3. Wisdom tooth pericoronitis: part of the crown of the erupted wisdom teeth and gums to form a deeper periodontal pocket, food impaction under the action of bacterial infection produces inflammatory secretions, causing the surrounding soft tissues of the swelling and pain, on the one hand, there will be the end of the teeth swollen, on the other hand, the patient will also have pain, limited mouth opening, fever and other symptoms. 4. Other: the patient may also have dental caries or tumor disease. If the flesh at the end of the tooth is swollen, you need to go to the hospital as soon as possible for examination, combined with the relevant diagnosis, and then symptomatic treatment.