The aim of this Working Group was to develop a Terminology Report as a definitional document, collating the definitions of those terms, related to obstetric pelvic floor disorders. This document will include definitions of perineal and pelvic floor trauma and associated disorders. Definitions of pelvic floor disorders that occur during pregnancy and up to 12 months postpartum will be considered for inclusion, for the purpose of this document. The rationale for this choice was based on evidence around the effect of pregnancy, childbirth and postnatal factors on the pelvic floor and the natural history of pelvic floor function recovery postnatally as well as possible influences of breastfeeding.