Health

Evidence Grows That Normal Childbirth Takes Longer Than We Thought

A long-standing “rule” for women in labor has been challenged again. During labor, the cervix – the narrow, lower part of the uterus – dilates, or opens, to allow for a baby’s birth. For decades, the guidance has been that the cervix should dilate by at least 1 centimeter per hour. But a study in two African countries found a slower rate of dilation for many women who went on to have healthy, vaginal births, researchers report online January 16 in PLOS Medicine.

loading