Generally seventy-year-olds with indications can take aspirin, but allergy to aspirin, severe liver and kidney insufficiency and other conditions are not recommended. Aspirin is a salicylic acid derivative class of antipyretic and analgesic drugs. It has the effect of relieving pain, antipyretic, antiplatelet, etc. It can be used for the treatment of toothache, headache, dysmenorrhea, neuralgia, muscle pain, fever, rheumatic diseases and myocardial infarction, cerebral infarction and other diseases. In general, seventy-year-olds with indications can take aspirin; however, aspirin may cause gastrointestinal reactions, allergic asthma, liver and kidney function damage and bleeding and other adverse reactions. So if seventy-year-old people are allergic to aspirin or other salicylates, thrombocytopenia, severe hepatic and renal insufficiency, active peptic ulcer and other conditions are not recommended to take. So seventy year olds should not take aspirin on their own. It needs to be taken under the guidance of a doctor after checking the blood routine, liver and kidney function, coagulation function and other items.