听说美国的医生强烈建议不要用douche
可以google 一下
http://womenshealth.about.com/cs/azhealthtopics/a/vagdouching.htm
从里面摘抄的：

“Is Douching Healthy?

Simply stated, the answer is "No."
....
Furthermore, regular users of vaginal douches face a 73% greater risk of developing pelvic inflammatory disease (PID) -- a chronic condition that can lead to infertility, or even death, if left untreated.
”