The benefits are being exaggerated and the costs underestimated by those promoting aneuploidy testing to clinics and patients. An exchange session with the ASRM urges caution.

Professor Rick Legro, a tireless advocate of randomised trials, talks to Focus on Reproduction about the general quality of evidence in reproductive medicine today - but with a particular reference to the latest international guidelines on PCOS.

Christos Coutifaris, immediate past president of the ASRM, talks to Focus on Reproduction about the huge uptake of frozen embryo and blastocyst transfer in the USA and the data which support (or not) its widespread use.

New ESHRE guidelines on ovarian stimulation are nearing completion and Ernesto Bosch, medical director of the IVI group and a member of the guidelines' development group, reviews recommendations for patients deemed at risk of an over-response to stimulation.

Goodbye to PR per ET? Professor Cindy Farquhar from the Cochrane Fertility & Gynecology group on plans to improve the quality of evidence in reproductive medicine and introduce core outcome measures of live birth in adequately powered studies.

With progress as rapid as ever in reproductive genetics, the PGT Consortium has developed four news sets of recommendation - on the organisation of a PGT service, on polar body and embryo biopsy, on chromosomal abnormalities and on monogenic defects. The Consortium's Chair Martine de Rycke explains.

Annual Meeting's opening Human Reproduction keynote lecture makes an unequivocal link between the good and bad of a preconceptional diet and measures of female fertility.

Fertility as much as any other discipline in medicine is subject to over-exaggerated claims of popular reporting. Scientists should take care how they present their data.

A keynote lecture to open this year's Annual Meeting reviewed the most debated and controversial scientific topic of the recent year: germline gene editing.

Consensus has been reached on requirements for safe and standardised oocyte pick-up under ultrasound guidance. Dr Arianna D’Angelo presented the highlights from the most recent recommendations document, which was developed by ESHRE's SIG Safety & Quality in ART.