Painless, bright red vaginal bleeding during the second half of pregnancy is the main sign of placenta previa. The amount of bleeding may range from light to heavy. The bleeding usually stops without treatment, but it nearly always recurs days or weeks later. Some women also experience contractions.

When to see a doctor

If you experience any vaginal bleeding during your second or third trimester, call your doctor right away. If the bleeding is severe, seek emergency medical care.

Jun. 02, 2011