4 degrees of Placenta Previa

Question 1

implantation in the lower rather than in the upper portion of the uterus

Answer 1

Low – lying placenta (low implantation of placenta)

Question 2

the placenta edge approaches that of the cervical os

Answer 2

Marginal implantation (placenta previa marginalis)

Question 3

implantation that occludes a portion of the cervical os

Answer 3

Partial placenta previa (placenta previa lateralis)

Question 4

implantation that totally obstructs the cervical os

Answer 4

Total placenta previa (placenta previa centralis)