Bleeding tongue may be due to trauma, abnormal blood clotting function, tongue cancer and other diseases. 1. Trauma, if the tongue is hit by external force or eat too hard food, resulting in damage to the tongue, bleeding tongue symptoms may occur. 2. Abnormal coagulation function, if the body’s coagulation function is abnormal, it may lead to blood oozing out, and thus tongue bleeding symptoms may occur. 3. Tongue cancer, after tongue cancer occurs, due to the cancer cells invading the tongue tissues, it may lead to lesions around the tongue and symptoms of broken ulcers, and also may lead to bleeding of blood vessels. If bleeding of tongue occurs frequently, it is recommended to consult doctor in time for examination and treatment.