What are the benefits and risks of different perineal techniques during the second stage of labour for preventing post-birth injury?

Globally, postpartum haemorrhage is responsible for a quarter of maternal deaths after childbirth. Tears of the perineum, which are common in vaginal births, are a major contributor to this excessive blood loss, and a variety of techniques are used to try to prevent them. The effects of these interventions are reviewed in a new Cochrane Review published in October 2024 and two of the authors, Tilly Fox and Kerry Dwan from The Liverpool School of Tropical Medicine in the UK, talk about the findings in this podcast.