Due to the worldwide epidemic of COVID-19 and development functional and gastrointestinal disorders after recovery, this study was conducted to investigate the prevalence and risk factors for functional gastrointestinal disorders (FGIDs) after one year of recovery from COVID-19.

The present prospective study was performed on 357 patients with COVID-19 who have been recovered for one year. Using ROME questionnaire and the patient's clinical history of irritable bowel syndrome(IBS) and its type, functional dyspepsia(FD) and GI symptoms were recorded.

One year after Covid-19, 15.4% of patients had IBS, 44.9% had GI symptoms, and 9.5% had FD. Women were more likely than men to develop these functional gastrointestinal disorders(P-value<0.05). Anxiety has increased the chance of IBS by 1.910 times, the chance of GI symptoms by 2.225 times, and the chance of FD by 1.110 times. Depression increased the chance of developing IBS by 1.772 times and developing FD by 3.753 times(P-value<0.05).

According to the results of the present study, coronavirus infection can provide long-term stability of gastrointestinal functional disorders such as GI, IBS, and FD. Anxiety and depression seem to be among the most relevant risk factors for these disorders, which is also more evident in women than men.