Does local endometrial injury in the nontransfer cycle improve the IVF-ET outcome in the subsequent cycle in patients with previous unsuccessful IVF? In their study, van Hoogenhuijze et al. investigated the impact of endometrial scratch injury (ESI) (as performed by aspiration biopsy catheter in the mid-luteal phase of the pre-transfer cycle) in women with one failed IVF/ICSI treatment. Gibreel A, El-Adawi N, Elgindy E, Al-Inany H, Allakany N, Tournaye H. Endometrial scratching for women with previous IVF failure undergoing IVF treatment. Endometrial scratching in women with one failed IVF/ICSI cycle-outcomes of a randomised controlled trial (SCRaTCH). [Extracted from the article]