Tooth bleeding is usually gum bleeding, and frequent gum bleeding is usually not considered to be caused by cancer. Because gum cancer usually does not cause gum bleeding, but may cause symptoms such as loose teeth and destruction of alveolar bone. Frequent bleeding of gums is commonly caused by gingivitis or periodontal disease. When there is inflammation of gums, there will be local vascular proliferation and congestion, and the gums will be edematous. At this time, if there is local stimulation, including brushing teeth or biting hard objects, it may lead to the rupture of local blood vessels in the gums. Other diseases may also cause the gums to bleed frequently, mainly systemic blood diseases, including thrombocytopenic purpura, hemophilia, aplastic anemia, etc. Prompt hospital consultation and examination should be conducted to clarify the cause. It is recommended to pay attention to oral hygiene, perform effective brushing every day, and avoid spicy and stimulating diet.