Bleeding gums (bleeding) is a relatively common phenomenon in daily life. Sometimes it may be due to physical factors such as hard dental appliances causing damage to the gingival mucosa, but in most cases it is caused by certain diseases and gingival bleeding often becomes part of systemic diseases and should be taken seriously. The following diseases often lead to gingival bleeding: 1. Oral lesions: gingivitis, periodontitis, periapical inflammation, etc. Sun Ling, Department of Hematology, First Affiliated Hospital of Zhengzhou University 2, Vitamin C deficiency, often called scurvy, is seen as gingival laxity, often with blood oozing. 3, Phosphorus poisoning often occurs when gingival erosion, gingival loosening, gingival bleeding. 4, diabetes, tuberculosis, tumors, rheumatic fever often cause gingival bleeding due to oral infections caused by the body’s resistance to decline. 5, hematological diseases: gum bleeding is a common sign of hematological diseases, persistent gum bleeding, the following diseases should be considered: leukemia, aplastic anemia, various thrombocytopenia can cause gum bleeding due to thrombocytopenia; hemophilia patients with coagulation factor deficiency is the main cause of more than gum bleeding; hereditary capillary dilatation, due to the weak capillary wall often has a tendency to gum bleeding. In our daily life, we should always keep our mouth clean, use soft dental appliances and standardize the brushing method to avoid gum bleeding. Because gum bleeding is often a local manifestation of many systemic diseases, when gums bleed repeatedly, you should go to the stomatology department and internal medicine department of the hospital for corresponding examinations, especially routine blood tests should be done to exclude blood disease system diseases, actively search for the cause of gum bleeding, treat the cause, and keep gums healthy. Teeth and gums are not only the gateway for food to enter the digestive tract, but also the guardian of the whole body’s health. Let’s pay attention to and take care of our teeth and gums to build a strong line of defense for the body’s health.