The most common cause of bleeding in the mouth is gingivitis, an inflammation of the gums that develops mainly due to plaque and calculus that irritate the gums over time, which can lead to bleeding gums when eating or brushing. If severe, the gums can also bleed spontaneously. Further examination in the dental clinic, you need to test the blood, blood routine and coagulation six, to rule out the blood system diseases, in this case, you can carry out the treatment of dental scaling. Through scaling can effectively remove the plaque and plaque on the gums of the stimulation, after scaling can be used to compound chlorhexidine mouthwash rinse or boric acid solution rinse mouth. In addition to iodized glycerin, can play the role of anti-inflammatory astringent hemostasis. Usually must pay attention to oral hygiene, rinse your mouth after meals, brush your teeth twice a day with quality, can effectively prevent the formation of plaque and calculus.