Abstract: The role of aeromonads as contributors to gastrointestinal pathology remains controversial. The aim of this study was to analyse the clinical characteristics and risk factors for the acquisition of an enteric infection by Aeromonas spp. in patients with digestive or nephrological diseases. The method user for the study comprised a retrospective review of the clinical history of all patients in whom Aeromonas spp. was isolated in faeces. The study period included in samples arriving at the microbiology service of the Marqués de Valdecilla University Hospital, from 2016 to 2022. The results showed that there was an increase in the more virulent Aeromonas species in the patients studied. The most common chronic diseases were cancer, inflammatory bowel disease and alcoholic cirrhosis, as well as biliary involvement in acute cases. In conclusión, Aeromonas is a genus to consider in patients with diarrhoea and hepatonephrological involvement.
