一位75岁老人因胃出血．住院。入院前曾用小剂量阿司匹林4天，临床医生诊断为阿司匹林所致胃出血。病人同时患有冠心病及糖尿病数年。无肝病、高血压、消化道溃疡及手术、外伤史，亦无食物及药物过敏史。患者入院前曾口服阿司匹林每日50mg连服4日。小剂量，单剂阿司匹林连续应 A 75-year-old man was bleeding from the stomach. Hospitalized. Before admission to a small dose of aspirin 4 days, clinicians diagnosed as aspirin-induced gastric bleeding. Patients also suffer from coronary heart disease and diabetes for several years. No liver disease, high blood pressure, peptic ulcer and surgery, history of trauma, nor the history of food and drug allergy. Patients had oral aspirin before admission 50mg daily for 4 days. Small doses, single dose of aspirin should be continuous