PLAT and gastric ulcer: In cardiovascular disease, cerebral infarction, ischemic stroke, and myocardial infarction are all related to thrombus formed by fibrin and platelet coagulation, while thrombolytic drugs represented by urokinase, tissue plasminogen activator (t-PA), and streptokinase all have side effects such as severe bleeding or gastric ulcer [2,3].