Fox News: Placenta accreta: The life-threatening condition affecting 1 in 533 pregnancies

In 2009, Dr. Maya Adam, found herself unexpectedly pregnant with her third child. ...But at her 20-week ultrasound, the Menlo Park, California woman was told that she had placenta previa, a condition in which the placenta covers part or all of the opening of the cervix and can cause bleeding and complications. Although placenta previa carries risks, her doctor told her to limit high-impact exercise and if she started to bleed, she should go to the emergency room immediately....
http://www.foxnews.com/health/2016/10/16/placenta-accreta-life-threatening-condition-affecting-1-in-533-pregnancies.html