Depends: This depends on gestational age. Early in pregnancy this can be from miscarriage. Later in pregnancy it can be from placental problems. At any time there can be other causes such as vaginal or cervical infection or dysplasia or trauma.
Answered 4/7/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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