三、出血1.拔牙后出血此种病人近期有拔牙史。其原因可能有龈撕裂渗血;牙槽内残留肉芽组织渗血;牙槽窝骨壁渗血。症状及检查:口内有血性唾液及血块。将口腔内擦拭干净,找到出血点。可疑有血压高或其他全身性血液病,如贫血、血小板减少性紫癜、白血病、血友病等,则应测量血压及血 Third, bleeding 1. Bleeding after tooth extraction Such a recent history of tooth extraction. The reasons may be bleeding gingival tears; alveolar residual granulation tissue bleeding; alveolar bone wall oozing. Symptoms and examination: bloody saliva and blood clots in the mouth. Wipe the mouth clean, find the bleeding point. Suspected of high blood pressure or other systemic blood diseases, such as anemia, thrombocytopenic purpura, leukemia, hemophilia, etc., should measure blood pressure and blood