ABSTRACT
STUDY QUESTION: What is the recommended management of ovarian stimulation, based on the best available evidence in the literature? 

SUMMARY ANSWER: This updated ESHRE guideline on ovarian stimulation for IVF/ICSI provides 121 recommendations, answering 21 key questions on ovarian stimulation for IVF/ICSI.

WHAT IS KNOWN ALREADY?: Before the ESHRE guideline on ovarian stimulation for IVF/ICSI was published in 2019, ovarian stimulation for IVF/ICSI had only been discussed briefly in the National Institute for Health and Care Excellence guideline on fertility problems and in a statement by the Royal Australian and New Zealand College of Obstetricians and Gynaecologists.