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Placenta Previa
Symptoms of placenta previa include one or both of the following:
- Sudden, painless vaginal bleeding that ranges from slight to heavy. The blood is often bright red. Bleeding can occur as early as the 20th week of pregnancy but is most common during the third trimester.
- Symptoms of preterm labor, such as regular, menstrual-like cramps, or a feeling of pressure in your lower abdomen. The bleeding from placenta previa can cause the uterus to contract.
Bleeding from
placenta previa 
may taper off and even stop for a while. But it nearly always
starts again days or weeks later.
Some women with placenta previa do not have any symptoms. In this case, placenta previa may only be diagnosed by an ultrasound done for other reasons.
| By: | Healthwise Staff | Last Revised: February 23, 2010 |
| Medical Review: | Sarah Anne Marshall, MD - Family Medicine William Gilbert, MD - Neonatal-Perinatal Medicine | |
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