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The most common symptom of placenta previa is vaginal bleeding that is bright red and not associated with abdominal tenderness or pain, especially in the third trimester of pregnancy. However, each woman may exhibit different symptoms of the condition or symptoms may resemble other conditions or medical problems.
The abruption hampers the oxygen and nutrient supply to the baby, [2] sometimes causing heavy bleeding in the placenta and uterus. It generally occurs between the 28th and 40th pregnancy weeks (third trimester) but can also occur during the middle or later parts of the second trimester (after the 20th week). [3].