What symptom might indicate a placenta previa?

The symptom that indicates a potential placenta previa is heavy bleeding after cervical examinations. In cases of placenta previa, the placenta is located low in the uterus and can be positioned over or near the cervical opening. Engaging in cervical examinations can disrupt the placental attachment, leading to heavy bleeding. This bleeding is typically painless and can occur without warning.

In contrast, severe abdominal pain with bright red bleeding is more characteristic of placental abruption, while light brown spotting with fever could suggest an infection or other complications. Subtle uterine contractions with back pain may occur in various situations, such as the early stages of labor or other types of pregnancy complications, but are not specific to placenta previa. Understanding the unique symptoms associated with placenta previa is crucial for appropriate management and care during pregnancy.