Health / Medical Topics |
Placenta Previa
Definition 1
A condition in which the placenta covers or is within 1 cm of the cervical os. (NCI Thesaurus)
Definition 2
A placenta which develops in the lower uterine segment, in the zone of dilatation, so that it covers or adjoins the internal os. Painless hemorrhage in the last trimester, particularly during the eighth month, is the most common symptom. (Dorland, 27th ed) (NLM, Medical Subject Headings)
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