Previous studies have found that cortisol levels in cord blood are lowest in babies born by elective Caesarean, followed by spontaneous vaginal delivery.

先前的研究发现，婴儿脐带血中的皮质醇水平剖腹产最低，其次是顺产。

youdao

Symptoms like itching, a strong odor, or a change in color (such as to brown, gray, or green) indicate that a girl may have a vaginal infection and needs to see a doctor.

如果有诸如瘙痒，刺鼻难闻，或是变色(比如说变成褐色，灰色抑或是绿色)的症状，则表明该女性可能有生殖系统感染，这个时候就应当去看妇科医生咯。

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The risk is still quite small, but many developed countries have seen a dramatic rise in the number of Caesareans performed each year as more women elect to avoid a vaginal delivery.

这个风险还是很小，但在很多发达国家，每年选择剖腹产分娩而避免自然分娩的孕妇数目急剧上升。

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Still others said some women may have had vaginal conditions that made them more likely to become infected.

VOA: special.2010.07.21

As a result, when they become pregnant again, they often cannot face the prospect of a vaginal birth and want to have their baby by Caesarean section instead.

BBC: Are women with a fear of childbirth being supported?

Many women who have had cesarean sections inquire about the possibility of attempting a vaginal birth after C-section (VBAC), sometimes also called trial of labor after C-section (TOLAC).

CNN: Is it OK to have a VBAC?

"The vaginal route has less side effects and also enables women to have medical abortions up to 63 days, as opposed to the 49 days that the oral route is approved for, " she said.

NPR: FDA Investigating Two Deaths from Abortion Pill