Bleeding during pregnancy? Check for Placenta Previa

When the placenta obstructs the cervical opening, it is referred to as placenta previa. It usually occurs in the third trimester. Risk factors include four or more pregnancies, history of placenta previa, C- section, age ≥ 35 years, smoking history and fibroids. The hallmark sign of placenta previa is bleeding (light to medium) without pain. Pre-partum fetal heart monitoring is non-reassuring (>160bpm) and immediate c-section is the preferred choice of treatment. 

Question: What is a life-threatening complication of placenta previa ?

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