RESUMEN
The Tokyo guidelines (TG) for acute cholecystitis, published in 2007, have been updated to the third edition of TG18, and the European World Association of Emergency Surgeons (WSES) Guidelines, published in 2016, has also been updated to the 2020 edition. Different guidelines have certain consensus and differences in diagnosis and treatment ideas. Better understanding the updated content in the guidelines and master the consensus among different guidelines can make the clinical diagnosis and treatment more standardized, safer and scientific. In this paper, the changes in the updating process of each version of the two guidelines and the consensus differences between the guidelines are summarized in order to provide a clear idea for clinical workers in the diagnosis and treatment of acute cholecystitis.