Figure 2.

Colonoscopy showed mucosal inflammation of the sigmoid colon and rectum before the faecal microbiota transplantation and improvement in inflammation after the treatment with faecal microbiota transplantation (FMT). 2a-2b: colonoscopy before the treatment; 2c-2d: colonoscopy 4 weeks after the first course of FMT; 2e-2f: colonoscopy 4 weeks after the second course of FMT. These figures show that marked congestion and narrowing of the intestinal cavity at the sigmoid colon 20 cm from the anus occurred; thus, the passage of the colonoscope was difficult. Additionally, following the FMT treatment, the intestinal mucosal congestion was significantly improved.