According to the FIGO classification, what is the threshold blood loss volume that defines postpartum hemorrhage?

Explanation

## FIGO Classification of Postpartum Hemorrhage **Key Point:** The updated FIGO (International Federation of Gynaecology and Obstetrics) definition of postpartum hemorrhage is **≥1000 mL after any mode of delivery** (vaginal or cesarean), measured within 24 hours of delivery. This unified threshold was adopted in the 2022 FIGO PPH guidelines and aligns with WHO and ACOG definitions. ### Historical vs. Current Definition | Organization | Old Definition | Current Definition | |---|---|---| | FIGO (pre-2022) | ≥500 mL (vaginal) / ≥1000 mL (CS) | ≥1000 mL (any mode) | | WHO | ≥500 mL (vaginal) | ≥1000 mL (any mode) | | ACOG | ≥500 mL (vaginal) / ≥1000 mL (CS) | ≥1000 mL (any mode) | ### FIGO Severity Grading (2022) | Grade | Blood Loss | Clinical Features | |-------|------------|-------------------| | Minor PPH | 500–999 mL | Stable vitals, no signs of shock | | Major PPH | ≥1000 mL | Tachycardia, hypotension, or signs of shock | | Severe/Critical PPH | ≥2000 mL | Shock, DIC, organ failure | ### Clinical Context **High-Yield:** The 2022 FIGO consensus statement unified the PPH threshold to **1000 mL regardless of delivery mode**, recognizing that the physiological reserve is similar across delivery types and that the old 500 mL threshold for vaginal delivery led to under-treatment. Blood loss of 500–999 mL is now classified as "minor PPH" requiring monitoring but not necessarily intervention. **Clinical Pearl:** Estimated blood loss underestimates actual loss by 30–50%; quantitative blood loss (QBL) measurement is now recommended by FIGO, WHO, and ACOG. **Warning:** The older definition (≥500 mL vaginal / ≥1000 mL CS) is still cited in older Indian textbooks (e.g., Dutta's Obstetrics). However, current NEET PG and INI-CET examinations align with the updated 2022 FIGO/WHO/ACOG unified threshold of ≥1000 mL for any mode of delivery. *Reference: FIGO PPH Guidelines 2022; Williams Obstetrics, 26th edition; WHO recommendations for the prevention and treatment of postpartum haemorrhage, 2023.*