Swollen gums and bleeding teeth are a relatively common clinical symptom, and the most common disease for this symptom is called gingivitis. Gingivitis is caused by poor oral, especially periodontal hygiene, periodontal due to long-term food debris and bacteria mixed with saliva storage, over time will form plaque and calculus in the gums by the gingival sulcus, the longer the bacteria breeding, the more inflammation in the gums, called gingivitis. The typical features are swollen, flaccid gums and bleeding, which are mainly manifested as bleeding under stimulation, usually when biting hard objects and bleeding when brushing, which are very common clinical symptoms, and for gingivitis requires scaling treatment.