There are many possible causes for gum bleeding when brushing teeth, which can be divided into physiological and pathological causes. The physiological cause may be due to the way of brushing teeth that causes gum bleeding when brushing teeth, and excluding gum bleeding caused by the way of brushing teeth, it may be caused by inflammation stimulation, tartar stimulation, gum damage, endocrine abnormalities, etc. Since the causes are different, the treatment is also the same. If you need to treat by using medication, you should follow the will and take the medication under the guidance of a doctor. I. Physiological causes Most people’s bleeding gums are caused by improper brushing. Some people start brushing their teeth violently in order to brush the dirt off their teeth, which can accidentally injure the gums and cause them to bleed. It is recommended to reduce the strength when brushing, buy a soft-bristled toothbrush, or a toothbrush with bristles suitable for you, to reduce gum bleeding. Second, the pathological reasons 1, inflammatory stimulation: such as chronic inflammation of the gums and inflammatory hyperplasia. When suffering from chronic inflammation of the gums, the gums are stimulated by inflammation and may become edematous. At this time, brushing may strengthen the stimulation of the gums, and the situation of bleeding occurs when the gums normally do not bleed as soon as they are brushed. Clinically often according to different diseases to choose the appropriate treatment, such as chronic inflammation of the gums, can be removed first through the gingival cleaning and other stimulating factors, and then through the use of compound chlorhexidine rinse and other drugs for anti-inflammatory, in order to achieve the effect of treatment of disease; 2, tartar stimulation: around the teeth will exist gum irritants, most of these irritants are tartar, plaque, stimulation of the gums will appear a brushing bleeding symptoms The gingival irritants are mostly tartar and plaque, which can cause bleeding when brushing, and may cause inflammation. At this time, you can take the gingival cleaning method to get rid of tartar, plaque, to avoid inflammation of the gums; 3, gum damage: when the gums are damaged, such as biting hard objects, eating too hot food, etc., this may cause damage to the gingival mucosa, when the gingival mucosa is damaged brushing teeth, there may be the usual gums do not bleed a brushing bleeding situation. At this time, you can locally use watermelon cream spray and other drugs to promote the gingival mucosa healing, you can also use chlorhexidine rinse and other anti-inflammatory drugs for anti-inflammatory, so as to achieve the effect of the treatment of disease; 4, endocrine abnormalities: such as sex hormones, insulin and other hormones increase, may make the teeth appear non-specific inflammation, if you brush your teeth at this time, there may be the usual gums do not bleed once you brush your teeth bleeding situation. Clinically, different drugs are often selected for treatment according to different hormones. If insulin secretion is abnormal, exogenous insulin should be supplemented with medication as prescribed by the doctor in a timely manner; 5. Systemic diseases: such as hemophilia, diffuse intravascular coagulation, liver disease, etc. When suffering from hemophilia, the coagulation function of the body becomes abnormal, which may lead to the situation that the gums normally do not bleed when brushing teeth. In this case, different treatment methods are often chosen depending on the disease, such as taking recombinant F VIII and other drugs in hemophilia, and replenishing clotting factors through plasma transfusions, etc., in order to achieve the effect of treating the disease. The above list is only part of the common causes of bleeding gums. To improve the bleeding gums in general, you need to pay more attention to oral cleaning and maintain oral hygiene, and when the bleeding situation does not improve, you should go to the hospital for examination and actively cooperate with the doctor for treatment.