不太清楚,我简单地搜了一下,看来两种说法都不能太绝对,请看
http://www.babycenter.com/0_episiotomy_165.bc
Obstetricians used to do episiotomies routinely to speed delivery and to prevent the vagina from tearing。 But many studies over the past 20 years have shown that this is not
the case. In fact,
there is no good evidence that episiotomy offers your vaginal tissue and pelvic floor muscles any real protection[/U], and the procedure may actually cause problems. For this reason, the American Congress of Obstetricians and Gynecologists as well as a host of other experts now agree that the procedure shouldn't be done routinely.
Is it better to tear naturally or have an episiotomy?Research has shown that women with a spontaneous tear generally recover in the same or less time and often with fewer complications than those who had an episiotomy.
不过,年轻是硬道理,咋的都行