I
or birth or childbirth or labour or delivery
Process of bringing forth a child from the uterus , ending pregnancy .
It has three stages. In dilation, uterine contractions lasting about 40 seconds begin 20–30 minutes apart and progress to severe labour pains about every 3 minutes. The opening of the cervix widens as contractions push the fetus . Dilation averages 13–14 hours in first-time mothers, less if a woman has had previous babies. When the cervix dilates fully, expulsion begins. The "water" (amniotic sac) breaks (if it has not already), and the woman may actively push. Expulsion lasts 1–2 hours or less. Normally, the baby's head emerges first; other positions make birth more difficult and risky. In the third stage, the placenta is expelled, usually within 15 minutes. Within six to eight weeks, the mother's cesarean section ; lactation ; midwifery ; miscarriage ; natural childbirth ; obstetrics and gynecology ; premature birth .
II
[c mediumvioletred] (as used in expressions)
child labour
division of labour
International Labour Organization
{{link=Israel Labour Party">Israel Labour Party
labour economics
labour law
Labour Party
labour union
migrant labour
natural childbirth
birth control
birth defect
multiple birth
premature birth
Virgin Birth