Recent tooth bleeding should mean the cause of tooth bleeding. In general, the most common clinical cause of tooth bleeding is gum bleeding, and the most common causes of gum bleeding are gingivitis and periodontitis, the specific factors are plaque and tartar deposits in the periodontium, resulting in inflammation of the gums and periodontium, and these can be basically controlled by scaling and subgingival scaling. There may also be systemic causes of gum bleeding, such as excessive blood pressure that may lead to the appearance of bleeding gums, or blood system disorders such as hemophilia and coagulation factor deficiency, which may also be the cause of bleeding gums. In addition, long-term oral anticoagulant medications, such as aspirin and clopidogrel, in middle-aged and elderly people may also cause bleeding gums, but these can be influenced by local factors of gum plaque and calculus.