Bleeding raises risk of preterm delivery

Women who experience unexplained bleeding in mid to late pregnancy face up to a fivefold increased risk of preterm delivery, a study finds.

The study of 60,300 pregnancies found women with unexplained antepartum haemorrhage were three times more likely to deliver by 34 weeks, and five times more likely to deliver by 37 weeks, compared to women without bleeding.

It included women who first presented with bleeding after 24 weeks gestation, and in whom labour, placenta praevia, placental

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