Citation, DOI, disclosures and article data
Citation:
Radswiki T, Knipe H, Yap J, et al. Postpartum hemorrhage. Reference article, Radiopaedia.org (Accessed on 29 Mar 2025) https://doi.org/10.53347/rID-15511
Disclosures:
At the time the article was last revised Henry Knipe had the following disclosures:
- Micro-X Ltd, Shareholder (past)
These were assessed during peer review and were determined to
not be relevant to the changes that were made.
View Henry Knipe's current disclosures
Postpartum hemorrhage (PPH) refers to uterine bleeding after delivery and remains one of the major worldwide causes of maternal mortality.
Epidemiology
Risk factors
A helpful mnemonic to remember the risk factors of postpartum hemorrhage is PARTUM.
Pathology
Etiology
Postpartum hemorrhage can be broadly classified as primary or secondary.
Primary postpartum hemorrhage
This is the most common form of major obstetric hemorrhage. Primary postpartum hemorrhage is traditionally defined as the loss of ≥500 mL of blood from the birth canal within 24 hours of birth ref. It can be classed as ref:
minor: 500-1000 mL
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major (>1000 mL)
moderate: 1000-2000 mL
severe: >2000 mL
Secondary postpartum hemorrhage
Secondary postpartum hemorrhage is defined as abnormal or excessive per vaginal bleeding between 24 hours and 12 weeks postnatally. Causes include ref:
The most common cause of primary postpartum hemorrhage is...
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1. Pelage J, Soyer P, Repiquet D et al. Secondary Postpartum Hemorrhage: Treatment with Selective Arterial Embolization. Radiology. 1999;212(2):385-9. doi:10.1148/radiology.212.2.r99jl05385 - Pubmed
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3. World Health Organization. WHO Guidelines for the Management of Postpartum Haemorrhage and Retained Placenta. (2009) ISBN: 9789241598514 - Google Books
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5. Iraha Y, Okada M, Toguchi M et al. Multimodality Imaging in Secondary Postpartum or Postabortion Hemorrhage: Retained Products of Conception and Related Conditions. Jpn J Radiol. 2018;36(1):12-22. doi:10.1007/s11604-017-0687-y - Pubmed
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6. Kamaya A, Ro K, Benedetti N, Chang P, Desser T. Imaging and Diagnosis of Postpartum Complications: Sonography and Other Imaging Modalities. Ultrasound Q. 2009;25(3):151-62. doi:10.1097/RUQ.0b013e3181b5451e - Pubmed
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