Aspirin is a salicylate preparation of non-steroidal drugs, with the role of inhibiting platelet aggregation can prevent thrombosis, and is now widely used to prevent cardiovascular disease in patients with coronary heart disease, hypertension, hyperlipidemia, diabetes and other high-risk factors. Aspirin also has a mild antipyretic and analgesic effect, and can be taken in small doses in patients with colds and flu to reduce fever and relieve muscle pain; it can also play a certain analgesic role in rheumatoid arthritis and other rheumatic immune system diseases. Excessive doses of aspirin have the potential to increase the risk of bleeding.