This video provides a practical guide to selecting the appropriate hysteroscopic resectoscope for different gynecological procedures. It compares monopolar and bipolar systems before focusing on the clinical advantages of 26 Fr, 22 Fr, and 18 Fr resectoscopes. Through operative demonstrations, the lecture highlights how instrument size influences cervical dilatation, ease of entry, operative efficiency, and tissue resection. The video also explains the assembly of the 18 Fr resectoscope and illustrates its usefulness in difficult cervical stenosis. Viewers will gain practical insights into choosing the most suitable resectoscope for safe, efficient, and patient-specific hysteroscopic surgery.