The relatives of patient G. asked for help at the Falck Hospital. Patient G. For a month, he was in the hospital of the city hospital with ongoing gastric bleeding. The patient was diagnosed with a disease of the operated stomach after an earlier operation for a perforated ulcer and a decision was made to perform a gastrotomy. He had regular blood transfusions, but could not find the source and stop the bleeding. The relatives decided to transfer the patient G. To the inpatient unit at Falk Hospital. At the admission of the patient G., Oleg Viktorovich Pererva, an endoscopist at the Falk Hospital, performed a diagnostic gastroscopy and found the source of the bleeding-a clear gastric anastomosis. Oleg Viktorovich applied the method of argon plasma koagulyatsii and were treated with gastric bleeding. The patient underwent a hemotransfusion to stabilize the hemodynamics and was discharged home a week later with a significant improvement in his health.