Generally, if aspirin-induced purpura, manifested as petechiae and ecchymosis on the skin of the extremities, and the platelet count is generally normal. After the patient stops using aspirin, the symptoms can disappear on their own, basically can be judged as aspirin-induced purpura. The skin purpura caused by some specific drugs is called drug purpura, common drugs are aspirin, heavy metal salts, allopurinol, penicillin and so on. Patients may have petechiae and ecchymosis of the skin of the extremities, usually not accompanied by other symptoms of abnormal bleeding, and some patients may have prolonged bleeding time and a positive bundle arm test, their platelet count, as well as the presence of platelet aggregation, and aggregation reaction is normal. Usually, after stopping the use of aspirin, the symptoms can disappear on their own, without the need to take special treatment measures. Patients can drink more water to promote metabolism. If the patient has the above symptoms and pathological features, it can mostly be judged as aspirin-induced purpura. If you want to determine whether it is aspirin-induced purpura, patients can go to the regular hospital, relevant examination, so as to clarify the cause of the disease.