The most common condition that causes bleeding gums is gum bleeding. The most common condition that causes bleeding gums is chronic gingivitis, and the typical symptoms of chronic gingivitis are redness, swelling, tenderness and bleeding of the gums, often manifested as bleeding from brushing teeth and bleeding from biting hard objects, and spontaneous bleeding may also occur in severe chronic gingivitis. In addition to gingivitis, there are many other clinical diseases that may cause gingival bleeding, such as more serious gum cancer, which may cause bleeding in the corresponding gum area, and vitamin C deficiency in the whole body may also cause gingival bleeding in the oral cavity, but at present, gingival bleeding caused by vitamin C deficiency is very rare, including patients who often take medications, such as aspirin, Bolivar and other anticoagulant drugs, may also be prone to gingival bleeding. Drugs, too, can predispose to gum bleeding. It is best to go to a professional medical clinic to identify the cause of the bleeding gums in the oral cavity and then treat the problem.