Abstract:Under physiologic conditions, diverse intestinal flora might enhance host responses against invading pathogens. However, intestinal flora might be disturbed and collapsed in sepsis which will result in poor prognosis. How to alleviate the intestinal flora dysbiosis and therefore to improve the survival rate of patients with sepsis has drawn growing attention. Omega-3 polyunsaturated fatty acids have become one of the research highlights due to their immunomodulatory and anti-inflammatory effects. This article mainly reviews the characteristics of sepsis-related intestinal microbial dysbiosis and possible roles of omega-3 polyunsaturated fatty acids in ameliorating sepsis-related intestinal microbial dysbiosis, in order to provide a new insight into the treatment of sepsis.