Bleeding gums are one of the common symptoms in dentistry. There are many causes of bleeding gums, and in addition to simple local problems in the mouth, it may also be an oral lesion manifestation of other systemic diseases. It can also appear in other diseases of the whole body and may indicate diseases of other systems, such as leukemia, after exposure to radioactive radiation, autoimmune diseases, etc. Untreated early gingival inflammation can lead to invasion of the periodontal ligament, destruction and resorption of the alveolar bone that supports the teeth, as well as bad breath, overflowing pus from the gums, and even loosening and loss of teeth. Therefore, prevention is the key. Prevention: 1, if it is due to poor oral hygiene, there is a lot of tartar, tartar caused by the stimulation of bleeding (this situation is the most common), you can go to the dentist to ask the doctor to clean teeth, remove tartar, tartar (commonly known as scaling, medically known as scaling, scraping), and oral antibiotics for 1 week, gum inflammation will be quickly eliminated, bleeding will also stop. Generally speaking, is not gum bleeding, should also be half a year to a year scaling 1 time. 2, if the gum bleeding is caused by the residual root and crown, the residual crown and root should be removed and dentures should be set later; if the gum bleeding is caused by poorly made braces or poor restorations, the braces should be made again or the teeth should be refilled. 3, women during menstruation, pregnancy, pay attention to maintain oral hygiene, usually after the period and pregnancy, gum bleeding can be significantly reduced. 4, choose a new health care toothbrush, avoid forceful horizontal brushing teeth, using vertical brushing method, to prevent stimulation of the gums caused by bleeding. 5.When there is extensive spontaneous gum bleeding of unknown cause, you should go to the hospital for an early examination in order to determine whether there is a blood system disease. Especially for hidden blood disorders, we should pay high attention to find the causes and deal with them in time.