Aspirin does not treat high blood pressure. Aspirin belongs to the non-steroidal anti-inflammatory drugs (NSAIDs), the main role of analgesic, antipyretic, anti-inflammatory, anti-rheumatic, improve the symptoms of arthritis, anti-platelet aggregation, there is no indication for the treatment of hypertension, can not be used for the treatment of hypertension. There is a portion of hypertension that requires aspirin, but not because of hypertension, but because of the combination of coronary artery disease, a history of cerebral thrombosis, and hypertension combined with risk factors. Specific usage should follow the clinician’s instructions, do not use on your own. Aspirin adverse reactions are common such as gastrointestinal discomfort, increased risk of bleeding, rash, pruritus, and edema. Aspirin is contraindicated in allergy, gastric ulcers, bleeding-prone individuals, severe renal, hepatic, and cardiac failure, and the last trimester of pregnancy. Drugs need to be rationally applied under the supervision of a physician to avoid adverse consequences caused by self-application.