Generally tolerate people, long-term use of aspirin enteric-coated tablets without obvious side effects; intolerant people can appear in the short term gastrointestinal discomfort, liver and kidney function impairment, bleeding, allergies and other adverse reactions. 1. Gastrointestinal discomfort: it can be manifested as dyspepsia, gastrointestinal and abdominal pain, and gastroduodenal ulcers can be seen in a few cases. 2. Hepatic and renal impairment: Aspirin is mainly metabolized by the liver, and its metabolites are mainly excreted from the kidneys, there is a certain risk of hepatic and renal impairment in people with poor hepatic and renal function, and a small number of people may have hepatic and renal failure. 3. Bleeding: Because aspirin is anti-platelet agglutination, there is a risk of bleeding, common hematoma, nosebleed, gum bleeding, rare gastrointestinal bleeding, cerebral hemorrhage occurs. 4. Allergic reaction: including common rash, hives, and asthma symptoms such as wheezing and dyspnea. Aspirin allergy, bleeding tendency and severe liver and kidney failure should be prohibited aspirin. Need to follow the doctor’s advice to take aspirin, take the process of bleeding, gastrointestinal discomfort, etc., consult a doctor in time to adjust the medication.