After cerebral infarction and cerebral hemorrhage generally need to take aspirin after 3 months, the specific time need to improve the corresponding examination can be clear. Usually cerebral infarction patients and cerebral hemorrhage, it takes about 3 months to take aspirin, the specific time can be combined with the following conditions, and exclude contraindications, you can take aspirin. 1. Check whether the patient’s intracranial hematoma is stable and whether it has been absorbed and formed a soft focus. 2. To determine whether the patient has any hemorrhagic changes in other parts of the body, such as gastrointestinal bleeding. 3. clarify whether there is a combination of hematologic disorders, such as hemolytic anemia. 4. to clarify whether there are contraindications to the use of aspirin, such as those who are allergic to aspirin, severe heart failure and so on. It is recommended that patients should use aspirin under the guidance of a doctor, do not use the drug without authorization, to avoid delaying the condition, the specific use of time as well as the dose should be in accordance with the doctor’s instructions.