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Preterm Labor Learning Center
Preterm labor is characterized by contractions or irritability of the uterus between weeks 20-36 of gestation that cause effacement and/or dilatation of the cervix.
When membranes in the amniotic sac rupture after 37 weeks of pregnancy it's known as premature rupture of membranes. Read about the signs...
If labor starts at 37 weeks or earlier, it is considered preterm or premature labor. Babies born prematurely have a greater chance of...
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