Gingival bleeding is not of decisive importance in diagnosticating periodontal diseases, since various endogenous causative factors and exogenous conditions may enhance its occurrence. In the absence of periodontal disease, gingival bleeding might be a symptom of a systemic disease. Because gingival bleeding is in most cases the first sign of an affection of the tooth-supporting structures that the patient observes, it should be, for all the difficulties its substantivation, be considered in history taking and for self-control.
牙龈出血在牙周疾病的诊断中并非具有决定性意义，因为各种内源性致病因素和外源性状况都可能增加其发生几率。在没有牙周疾病的情况下，牙龈出血可能是全身性疾病的症状。由于牙龈出血在大多数情况下是患者所观察到的牙齿支持结构受到影响的首个迹象，所以尽管对其进行证实存在诸多困难，但在病史采集和自我检查时都应予以考虑。
