Gum bleeding is relatively common, mostly caused by oral diseases, but some gum bleeding is caused by other diseases of the whole body, and clinical observations show that some gum bleeding is triggered by underlying blood disorders. When patients with bleeding gums encounter the following conditions, the possibility of blood disorders should be considered: 1. Gum bleeding is frequent or continuous, and cannot be stopped by using conventional hemostatic drugs or hemostatic methods. 2.The bleeding can be temporarily stopped after treatment, but then repeatedly bleeds. 3.No swelling or redness of the gums, but gum bleeding. 4.Gum bleeding is accompanied by dizziness and fatigue. 5.Gum bleeding accompanied by nose bleeding. 6.The gums bleed more than once after trauma. 7.Gum bleeding accompanied by scattered bleeding spots or petechiae around the body. 8.Gum bleeding accompanied by heavy menstruation and prolonged menstruation. 9.Gum bleeding accompanied by fever and enlarged lymph nodes. Once the above situation occurs, patients should go to the hospital for hematological examination and bone marrow aspiration examination in order to confirm the diagnosis and treatment as early as possible and avoid delaying the disease.