To evaluate the content validity of 19 Patient Reported Outcome Measures (PROMs) used to measure QoL in women with CPP DESIGN AND SETTING: We searched EMBASE, MEDLINE, PsycINFO databases and Google Scholar from inception to August 2020. We included records describing the development or studies assessing content validity of PROMs. Two reviewers independently assessed the methodological quality of PROMs using the COSMIN checklist. Evidence was synthesised for relevance, comprehensiveness and comprehensibility. Quality of evidence was rated using a modified GRADE approach.