Fig. 3. Endoscopic findings of anorectal stricture (A) Initial sigmoidoscopy, showing a luminal stricture with fibrotic tissue and exudate except for two tiny holes (1-mm [black arrow] and 5-mm [white arrow]) (B, C) The fibrotic tissue near the 1 mm hole was removed via hot biopsy and widened to about 1 cm. (D) Endoscopic electrocautery incision using an insulated-tip knife through the widened hole was carried out between the 1-cm and 5-mm hole (E) Stricture area was widened (F) Follow-up sigmoidoscopy after 1 year.