The POP-Q system: two decades of progress and debate.

I appreciate the opportunity to provide my reflections on the POP-Q, now more than 20 years since it was first conceived and 17 years since its publication in the American Journal of Obstetrics and Gynecology. The invitation led me to dig into old files and recall--through a series of insightful emails, faxes, meeting summaries and draft documents--a document made possible by the combined efforts of an extraordinary group of individuals.