The following is associated with increased risk for :-
Velamentous placenta - The umbilical cord vessels travel within the membrane before reaching placental margin . - Rupture of the membranes involving the overlying vessels lead to vaginal bleeding. - As it is entirely fetal blood, this may result in fetal exsanguination and even death in more than 50% of cases. This condition is actually called 'Vasa pre" when these membraneous vessels overlie the cervical os
Obstetrics
Premature rupture of membranes
Post paum haemorrhage
Fetal exsanguination before labour
Fetal NTD's
Fetal exsanguination before labour