Which condition is commonly associated with placenta previa?

Placenta previa is a condition where the placenta partially or completely covers the cervix, posing risks during delivery, particularly in cases of vaginal birth. One notable association with placenta previa is multiple pregnancies, which can lead to an unusually large placenta. In multiple gestations, such as twins or more, the placenta has to accommodate the needs of multiple fetuses, which can result in abnormal placements of the placenta, including instances where it might attach lower in the uterus and obstruct the cervix.

Understanding the context of the other conditions adds to the clarity. Strong uterine contractions typically do not coexist with placenta previa, as such contractions could lead to complications during labor, particularly if the cervix is obstructed. Pelvic inflammatory disease could affect reproductive health but is not a direct risk factor for developing placenta previa. Lastly, while a history of hypertension is relevant in the context of pregnancy complications, it does not have a direct correlation with the occurrence of placenta previa itself. Therefore, the connection between multiple pregnancies and an abnormally large placenta as a potential risk factor for placenta previa is key to understanding this condition.