I visited the Seosin Internal Medicine Clinic to get a follow-up test for a gastric ulcer. Director Yoo Seon-ho is a female doctor, so she is always kind and explains things thoroughly. Today, as expected, her explanation was really good. It is difficult to find the blood vessel because they put a needle in the hand to do an endoscopy, so everyone has a hard time, but this time, it was successful on the first try. Thanks to the veteran nurse, it was painless. It was done under sleep, but in a semi-sleep state, and I recovered quickly and went back to the clinic for treatment. Fortunately, the gastric ulcer has all disappeared, but one more polyp had grown, so they wanted to remove three of them, but this hospital said that removal was not possible due to bleeding, so they biopsied only one polyp that was a little large. I decided to visit again when the test results came out.