Aspirin taken in the morning has the same effect as taking it at night and needs to be decided according to your situation. Aspirin belongs to the non-steroidal anti-inflammatory drugs, after the use of platelets can make the cyclooxygenase ethanolized, thus reducing the generation of thromboxane a2. It is mainly used to inhibit platelet aggregation, reduce the incidence of myocardial infarction, temporary cerebral ischemia and stroke in people with atherosclerosis, and can also be used in the treatment of fever, pain and rheumatic diseases. Usually the drug can be taken either in the morning or at night, and it exerts the same drug effect without much difference. However, nausea, vomiting, hearing loss, asthma and other discomforts may occur after taking the drug. Secondly, it is forbidden for those who are allergic to the components of the drug, those with severe heart failure, active peptic ulcers and bleeding. In the process of taking the drug, you need to pay attention to monitoring liver function and kidney function. And pregnant and lactating women need to use the drug under medical supervision. If you need to use aspirin treatment, it is recommended to use the drug under the guidance of a doctor, not blindly self-medication to avoid adverse reactions.