Endometrial scratching during hysteroscopy in women undergoing fertilization: a systematic review and meta-analysis.

Objective: Endometrial scratching (ES) during hysteroscopy before embryotransfer (ET) remains doubtable on whether it benefits the reproductive outcomes. The optimal technique is not clear and repeated implantation failure as a challenging field in fertilization (IVF) seems to be the springboard for clinicians to test its effectiveness.

Methods: Medline, PMC, ScienceDirect, Scopus, CENTRAL, Google Scholar were searched from their inception up to April 2023 for studies to evaluate the effectiveness of adding endometrial scratching during hysteroscopy before ET.