I. Causes of bleeding gums Bleeding gums is one of the common symptoms in dentistry. In general, bleeding gums are commonly seen in the early stages of periodontitis – gingivitis. Gum bleeding does not only appear in dentistry, it can also appear in other diseases throughout the body and may indicate diseases of other systems, such as leukemia, after exposure to radioactive radiation, autoimmune diseases, etc. Patients with liver disease have reduced prothrombinogen or fibrinogen, resulting in poor blood clotting, and when the oral cavity is compromised, persistent bleeding can occur. For our life now, gum bleeding is a symptom of oral abnormalities, because gum bleeding does not only represent a disease in the mouth, there may be other parts of the disease, so it is important to find out the cause of bleeding gums and timely treatment. Second, there are many reasons for gum bleeding, generally can be divided into local causes and systemic causes 1, local causes of gum bleeding common in patients with gingivitis or periodontitis, in addition to gingival hyperplasia can also cause local bleeding gums. 2, in the human gum edge and teeth between a shallow gum groove, when the oral cavity is not clean, the gum groove often accumulate a lot of decayed soft and sticky food residue, which mixed with a large number of bacteria, the formation of soft tartar. After a long time, together with the mineral deposits separated from the saliva in the tartar, hard tartar is formed, also called tartar. This soft tartar and hard tartar, or tartar, constantly irritates the gums and, together with the constant attack of bacteria, causes inflammation of the gums, which is manifested by red and swollen gums and ulcerated gum margins, and can cause bleeding if touched slightly. 3, in addition to gingivitis or periodontitis will cause local bleeding gums, gingival hyperplasia can also cause local bleeding gums. Some young people have swollen and elevated gums due to unclean mouth, and there is a softer feeling when you press the gums with your finger. This enlarged gum, some of which can cover 1/3 to 1/2 of the tooth surface, can cover tartar and tartar under the enlarged gum, thus causing regular gum bleeding. Taking drugs for epilepsy can also cause gum enlargement. 4, some people like to brush their teeth with a large hard-bristled toothbrush, especially the horizontal brush is more likely to cause local bleeding. There are also inappropriate use of toothpicks, set with unreasonable dentures, cavity edge sharp stimulation and embedded hard food residues, etc., can also cause local gum bleeding. 5.Under the same conditions, people who lack vitamin C for a long time are more prone to gum bleeding than normal people after encountering the above-mentioned stimuli due to the increased capillary brittleness and strong permeability of the gum tissue, and eating more vegetables can improve the body’s intake of vitamin C. 6, gum bleeding people, another part is caused by systemic diseases, this kind of gum bleeding is often one of the signals of systemic diseases, such as hemophilia, bleeding purpura, thrombocytopenia, etc.. There are also some systemic diseases in their later stages that can cause hypo-coagulation or severe anemia, which can also show symptoms of bleeding gums, such as cirrhosis, hypersplenism, late stage nephritis, disseminated lupus erythematosus, etc. Bleeding gums are also a prominent symptom of scurvy. Nowadays, most citizens mistakenly believe that brushing is only brushing teeth, but in fact, proper brushing should be cleaning teeth and periodontal tissues, where periodontal tissues include gums. If you brush your teeth without cleaning the periodontal tissues, dirt will accumulate at the junction of teeth and periodontal tissues for a long time, and the dirt will cause inflammation leading to inflammation. Inflammation can cause small blood vessels in the periodontal tissue to dilate, which can cause small blood vessels to rupture and bleed when touched by brushing, resulting in bleeding gums. At the same time, when periodontal tissue is inflamed, it will be accompanied by a painful sensation, and each time you brush your teeth, you will deliberately avoid the inflamed area. In the long run, this can lead to a vicious cycle. The key to preventing gum bleeding caused by periodontal local inflammation is to learn how to brush your teeth. Choose a soft and hard toothbrush, and remember to clean your mouth thoroughly when brushing your teeth to remove the dirt that has accumulated in your mouth. If your gums are bleeding due to systemic factors, go to a specialist for treatment in a timely manner.