2017年4月25日 · The first stage of labor happens in two phases: early labor and active labor. Typically, it is the longest stage of the process.

2017年8月7日 · Each pregnancy and delivery is different, and problems may arise. If complications occur, providers may assist by monitoring the situation closely and intervening, as necessary. Some of the more common complications are:1,2

2017年1月31日 · Labor is the process by which the fetus and the placenta leave the uterus. Delivery can occur in two ways, vaginally (through the birth canal) or by a cesarean (surgical) delivery. NICHD provides detailed information about these topics on its Labor and Delivery page.

2017年8月22日 · Compared with women who have a typical first-time pregnancy, women who attempt labor after a previous cesarean delivery experience a slower progression of labor, especially during the stages when the cervix dilates from 4 to 7 or 8 centimeters.

2017年2月13日 · For most women, labor begins sometime between week 37 and week 42 of pregnancy. Labor that occurs before 37 weeks of pregnancy is considered premature, or preterm.1 Just as pregnancy is different for every woman, the start of labor, the signs of labor, and the length of time it takes to go through labor vary from woman to woman and even from …

2017年9月1日 · "Labor" and "delivery" describe the process of childbirth. Contractions of the uterus and changes in the cervix (the opening of the uterus) prepare a woman's body to give birth. Then the baby is born, and the placenta follows. NICHD studies many aspects of labor and delivery: their basic biology, childbirth practices, and management of related problems. A …

Labor and delivery are the process by which a baby is born, from the body's preparations to when the baby and the placenta leave the womb. The earliest stage of labor prepares the body for delivery. This is a period of hours or days when the uterus regularly contracts and the cervix gradually thins out (called "effacing") and opens (called "dilation") to allow the baby to pass …

2017年12月30日 · Stages of Labor Logo of the Eunice Kennedy Shriver National Institute of Child Health and Human Development : GRAPHIC SLIDE: Stage 1 Early Phase Computer-generated diagram of a fetus in the womb. The vagina and uterus are labeled with text, followed by a label pointing to the cervix reading “Cervix softens and thins.” Narrator: Labor has ...

2017年2月13日 · The amount of pain felt during labor and delivery is different for every woman. The level of pain depends on many factors, including the size and position of the baby, the woman's level of comfort with the process, and the strength of her contractions. There are two general ways to relieve pain during labor and delivery: using medications and using "natural" …

2017年2月6日 · Several factors can make a pregnancy high risk, including existing health conditions, the mother’s age, lifestyle, and health issues that happen before or during pregnancy.This page provides some possible factors that could create a high-risk pregnancy situation. This list is not meant to be all-inclusive, and each pregnancy is different, so the …