Painless vaginal bleeding in the last trimester may be caused by:
A . Menstruation
B . Abruptio placentae
C . Placenta previa
D . Polyhydramnios
Answer: C
Explanation:
(A) Menstruation should not occur during pregnancy.
(B) Abruptio placentae is marked by painful vaginal bleeding following a premature placental detachment after 20th week of gestation.
(C) A low-lying placenta separates from the uterine wall as the uterus contracts and cervix dilates. This separation causes painless bleeding in the 7th-8th month.
(D) Polyhydramnios is excessive amniotic fluid.