Date	Event	Description
22 January 2018	New search has been performed	Search updated and five new trial reports identified. Three were clinical trials registry reports of studies already assessed. We excluded one new trial in comparison 5. We are still unable to source the full‐text of Rosario 1973. One new study has been included in this update (Yildirim 2016). All details were updated in line with the new Cochrane requirements. We changed one section of risk of bias for two papers and updated the 'Summary of findings' table footnotes with this information, and included the setting. Dr Linda Biesty joined the team. We had erroneously referred to the comparison, 'women at low risk of excessive bleeding' as a "subgroup" in the text, so we altered this.
22 January 2018	New citation required but conclusions have not changed	Main conclusions have not changed. Language to reflect the GRADE assessments of the quality of the evidence was added, as was a sentence on the conclusions in relation to the comparison of women at low risk of excessive bleeding.