Placenta previa history and symptoms

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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History and Symptoms

• The main symptom of placenta previa is sudden, painless vaginal bleeding that often occurs near the end of the second trimester or beginning of the third trimester.

• In some cases, there is severe bleeding, or hemorrhage.
• The bleeding may stop on its own but can start again days or weeks later.

• There may be uterine cramping with the bleeding.
• Labor sometimes starts within several days after heavy vaginal bleeding. However, in some cases, bleeding may not occur until after labor starts.