Which symptom is indicative of placenta previa in an expectant mother?

Bright red vaginal bleeding is a hallmark symptom of placenta previa. This condition occurs when the placenta is positioned low in the uterus, partially or completely covering the cervix. As the pregnancy progresses and the cervix starts to thin and open in preparation for delivery, the low-lying placenta can be disrupted, leading to bleeding.

This bleeding is typically painless and occurs in the second or third trimester. The bright red color of the blood indicates that it is fresh and coming from the placenta rather than being old blood, which could appear darker. Identifying this symptom is crucial, as it may indicate the need for immediate medical evaluation to ensure the safety of both the mother and the fetus.