Bleeding gums when brushing teeth: First, you can use cold water gargling way to stop bleeding, blood vessels in the sudden cold situation will suddenly occur contraction, to achieve the purpose of stopping bleeding. Secondly, the saliva in the mouth also has the same function of stopping bleeding, when brushing teeth in such a situation ignore, it naturally blood will stop. Third, if you suffer from high blood pressure or blood diseases, the above two methods are not suitable, you need to go to the nearest dental hospital as soon as possible, by the doctor to stop the bleeding, you may need to take antiemetic drugs or bite a sterile cotton ball. Patients should never bite on hand towels or sterile gauze in their mouths at home, as this is likely to cause infection of the gums.