In view of the uncertainty over the effectiveness of vaginoscopy we designed an RCT. The aim was to evaluate whether vaginoscopy or standard hysteroscopy was potentially more successful in the office setting by comparing failure rates, complications, infection rates, patient acceptability, and pain scores. In the first instance we designed a feasibility pilot trial (VAginoscopy versus Standard Teloscope for office hysteroscopy trial; VAST) to inform the design, conduct and feasibility of a larger scale RCT.