Cardiovascular disease taking aspirin enteric-coated tablets can cause gastric bleeding. Aspirin enteric-coated tablets, a non-steroidal anti-inflammatory drug, is widely used in the treatment and prevention of cardiovascular, the pharmacological effect of anti-platelet aggregation, which can play the role of anti-thrombosis, is used for the treatment and prevention of transient cerebral ischemic attack, unstable angina pectoris, myocardial infarction, atrial fibrillation, artificial heart valves, or other postoperative thrombosis. Because of the inhibition of platelet aggregation, taking this product is prone to hemorrhagic adverse reactions, especially active bleeding in the gastrointestinal tract, or even the formation of gastric ulcers, manifested by bloody or tarry stools, severe pain in the stomach or vomiting of bloody or coffee-like material, mostly in patients taking large doses of the drug. Therefore, patients suffering from peptic ulcer, menorrhagia and patients with anemia should be cautious. Always take aspirin under the guidance of a physician, and seek medical attention if you experience any discomfort during the course of the medication.