Abstract
Background: In the face of the COVID-19 pandemic, surgical personnel and patients experience many diagnosis and treatment-related challenges. COVID-19 is highly virulent, and thus, immediate, safe, and effective solutions to the patients’ management are required. Research collaboration and knowledge dissemination are necessary to optimize medical and surgical approaches to the individual patients’ needs.
 Gastric manifestations of SARS-CoV-2 infection are not uncommon and may even precede respiratory symptoms. Common gastrointestinal symptoms include loss of appetite, diarrhea, nausea, vomiting and abdominal pain.
 Case Presentation: A 50-year-old male patient complained of "blood in the stool and tenesmus for half a year" and was admitted to the hospital on March 2, 2023. Half a year ago, the patient had blood in the stool without obvious incentives, the bleeding was bright red, the habit of defecation changed, the stool became thinner, and the frequency of defecation increased, 3-5 times a day, and the amount was not much. At that time, he went to a regular medical institution for any treatment measures.
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