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Commonest cause of postpartum haemorrhage
Obstetrics & Gynaecology · exam-style practice question with explanation
What is the most common cause of primary postpartum haemorrhage?
- A. Retained placental tissue
- B. Genital tract trauma
- C. Uterine atony
- D. Coagulation disorders
Show the answer and explanation
Answer: C. Uterine atony
Uterine atony, a uterus that fails to contract after delivery, causes most primary PPH. Remember the 4 Ts: Tone, Trauma, Tissue and Thrombin. First steps are uterine massage, oxytocin, emptying the bladder and calling for help.
Key point: PPH: the 4 Ts. Tone (atony) is the commonest.
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