Patient: 70 year old man with non-stop bleeding from the right side of the mouth 4 to 5 times a day for about 5 consecutive days with heavy bleeding. Causes anemia Hematology examination, hemoglobin is about 70 low, APTT is low. Iron deficiency anemia. Took iron supplements. Folic acid. Still bleeding non-stop, don’t know the cause Xinjiang Uygur Autonomous Region Hospital of Traditional Chinese Medicine, Department of Hematology, Yusheng Bai Xinjiang Uygur Autonomous Region Hospital of Traditional Chinese Medicine, Department of Hematology, Yusheng Bai: Hello! The causes of bleeding mainly include vascular factors, platelet factors and coagulation factor deficiency. It is recommended to check the platelets and additionally the clotting factors to see if they are the cause of these two aspects; in addition to that, pay attention to whether there is a drug effect, such as enteric aspirin, etc.