Aspirin is usually taken for a period of time without discomfort is not recommended to stop, but if there is a risk of bleeding after using the drug or to perform surgery, etc., need to stop. Aspirin is mainly used for the treatment of chronic rheumatic diseases, but also can be used for angina pectoris, myocardial infarction, cerebral infarction and other diseases of prevention and treatment. For chronic rheumatic diseases need long-term medication, can not be discontinued without authorization; about myocardial infarction, angina pectoris and cerebral infarction, need to continue to take medication, such as unauthorized discontinuation, easy to lead to insufficient blood supply to the heart and brain, resulting in more serious cardiovascular and cerebral vascular disease, so taking aspirin without discomfort is not recommended to eat a period of time to stop a stop. Some patients taking aspirin for a long time have a tendency to bleed, for this situation need to be discontinued urgently or reduce the dosage, until the bleeding stops completely. If there is a risk of hemorrhage or anemia and in preparation for surgery, discontinue the drug and wait until the condition is stabilized before continuing to take it. It should be contraindicated if you are allergic to the components of aspirin, or if you have gastrointestinal bleeding or hemophilia. Caution is required during pregnancy, breastfeeding, and in children. You need to consult your doctor before taking aspirin to avoid unauthorized use of the drug.