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After the outbreak of novel coronavirus disease 2019 (COVID-19) in Wuhan, China, its spread to other countries is rapidly increasing. In this integrative review, we report the prevalence of gastrointestinal symptoms in patients with COVID-19. For this purpose, available articles on gastrointestinal manifestations in patients with COVID-19, which were reported from China, were reviewed. All reviewed articles were searched from December 11, 2019, to June 20, 2020, based on specific key words. Related findings in these articles show that the main target of COVID-19 is lung tissue, as after the virus enters the body, it mainly causes respiratory symptoms in affected patients. But in addition to respiratory symptoms, it is possible that, over time, these patients present with other symptoms, the most obvious of which are gastrointestinal symptoms. It is well documented that diarrhea and vomiting are the most common gastrointestinal symptoms in COVID-19 patients. As part of this report, we also look at the incidence and frequency of gastrointestinal symptoms in COVID-19 patients in Iran. The results can be used by providers as a guideline for better management of gastrointestinal symptoms in these patients., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2021 Society of Gastroenterology Nurses and Associates.)