Childbirth (also called labour, birth, partus or parturition) is the culmination of a human pregnancy with the emergence of a newborn infant from its mother's uterus. A woman is considered to be in labour when she begins experiencing regular, strong uterine contractions, accompanied by changes of her cervix; primarily effacement and dilation.
While childbirth is widely experienced as painful, some women do report painless labours.
When the baby is born its birth weight is determined..
For more information about the topic Childbirth, read the full article at Wikipedia.org, or see the following related articles:
Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Childbirth at Wikipedia.org. See the Wikipedia copyright page for more details.

