Drug-induced gastrointestinal bleeding is caused by drugs acting on the gastrointestinal tract, which damages the gastrointestinal mucosa causing erosion and ulceration. Many drugs can cause gastrointestinal bleeding including non-steroidal anti-inflammatory drugs, antithrombotic drugs, chemotherapy drugs, and antibacterial drugs, drugs induced gastrointestinal bleeding by destroying gastrointestinal mucosal barrier, inhibiting of angiogenesis, destroying coagulation mechanism and there are still few prevention methods. This study focused on the clinical research and mechanism of drugs. The research in recent 5 years were reviewed to illustrate drug-induced gastrointestinal bleeding, so as to illustrate the characteristic actions of drug and provide some references and clues for the prevention of drug-induced gastrointestinal bleeding.
Cite：XU Han, ZHANG Yuanyuan, KOU Junping. Advances in drug-induced gastrointestinal bleeding and its pathological mechanism[J]. J China Pharm Univ,2019,50(6):659-665.