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The OASI Care Bundle Project

OASI Care Bundle logoThis scaling up programme was a collaboration between the RCOG, Croydon Health Services NHS Trust, the Royal College of Midwives (RCM) and the London School of Hygiene and Tropical Medicine (LSHTM), with funding provided by The Health Foundation.


Between 2000 and 2011, rates of Obstetric Anal Sphincter Injury (OASI) were shown to have increased in England. Experiences in some maternity units have highlighted that some of the underlying problems related to this rise in OASI include:

  • Inconsistencies in approaches to preventing OASIs
  • Inconsistencies in training and skills
  • Lack of awareness of risk factors and long-term impact of OASIs
  • Variation in practice between health professionals

In light of this, the OASI Care Bundle team developed and piloted an intervention package, including a care bundle and guide, a multidisciplinary skills development module for health care professionals, and campaign materials designed to raise awareness among clinicians and women).

The OASI Care Bundle Project received funding from the Health Foundation Scaling Up Programme to implement this intervention in 16 maternity units across England, Scotland and Wales from 2016 to 2018.


RCOG / RCM statement of support for the OASI Care Bundle

The RCOG and RCM would like to encourage all healthcare professionals to adopt the care bundle into their practice to improve health outcomes for women.
Read the statement of support



Formal implementation of the care bundle in the 16 participating units ended in April 2018. The OASI Care Bundle team subsequently evaluated the merits of the programme and their evaluation papers were published in 2020.

Note: the qualitative evaluation of women’s perspectives will be published in autumn 2020.


Watch: The OASI team discuss learnings from the project


Evidence for the project


OASI Care Bundle

Find out more

OASI flyer 2017 thumbnail


Contact us

For more information about the OASI Care Bundle Scaling Up Programme, please email or call +44 20 7772 6285.

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