通过呻吟声判断宫颈扩张。 注意自己的情绪。 通过气味判断宫颈扩张。 看是否有血和粘液。 看紫线的长度。 注意身体的感觉。 看后背有没有压迫感。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
There are many indicators of dilation that don’t require inserting your fingers into your vagina. This can be especially helpful if you are in a lot of pain or discomfort. Most women will make some type of sound when they’re in labor. Listening to what types of sounds you’re making can cue you into how much you’re cervix has dilated. The following sounds can accompany the various stages of labor and cervical dilation:  At 0-4 centimeters dilated, you may not be making much noise and can talk thr