The main side effects of aspirin enteric-coated tablets are dyspepsia, abdominal pain, bleeding of skin mucous membranes, bleeding of organs, renal damage and so on. Aspirin enteric-coated tablets are more widely used antiplatelet aggregation drugs, the use of the drug may produce multi-system side effects, the most common for gastrointestinal discomfort such as dyspepsia, abdominal pain, and in severe cases, inflammation, ulceration and perforation may occur. This drug can cause varying degrees of bleeding, such as bleeding from the skin and mucous membranes, bleeding from the genitourinary tract, gastrointestinal bleeding, and cerebral hemorrhage, which may be life-threatening. In addition the drug can cause side effects such as kidney damage, allergy, hemolysis, dizziness and tinnitus. The use of the drug should be evaluated and guided by a medical professional, and is contraindicated in cases of allergy, severe cardiac, hepatic and renal failure, acute tract ulcers, people with bleeding tendency, and the last trimester of pregnancy. If there is any discomfort during the use of the drug, it is necessary to stop the drug immediately and seek medical advice.