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Placenta membranacea

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

  • this is very rare - about 1/3000 pregnancies
  • in this condition a thin placenta is all around the baby
  • this condition predisposes to antepartum haemorrhage because some of the placenta is in the lower segment
  • in the third stage of labour there may be failure of separation of the placenta

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