This educational video demonstrates hysteroscopic lateral metroplasty performed using hysteroscopic scissors in a patient with a T-shaped uterus. The procedure begins with no-touch hysteroscopic entry using a 2.9 mm hysteroscope, followed by systematic assessment of the uterine cavity and identification of bilaterally convergent lateral walls. The video explains the anatomical landmarks used to determine the starting point of surgery and demonstrates gradual lateral wall incision using fine hysteroscopic scissors. Viewers will learn how to enlarge the uterine cavity safely while preserving important anatomical structures and avoiding excessive resection. The final result illustrates restoration of a spacious uterine cavity with clear visualization of both tubal ostia, making this an excellent teaching video for hysteroscopic surgeons.