Now, obviously, not when she's made cranky by the shedding of her uterine lining.

当然啦，她因内膜脱落，而脾气暴躁那几天可不行。

Blood and tissue leave the body, forming the period.

血液和脱落内膜离开身体，形成月经。

The endometrium evolved to make implantation difficult so that only the healthy embryos could survive.

内膜经过演化， 使得着床难以进行因此，只有健康胚胎能够生存。

Just days after fertilization, the embryo implants in the lining of the uterus.

在受精后几天内，胚胎就会被植入内膜。

Lower levels of estrogen would lower the risk of breast and endometrial cancers.

雌性激素水平较低会降低患乳腺癌和内膜癌风险。

If fertilization doesn't occur, the spiral arteries collapse, and the superficial layers of the endometrium die.

如果卵没有受精，螺旋动脉将会收缩，内膜表层也会因此凋亡。

The endometrium evolved to make implantation difficult

内膜不断演化 使得着床变得困难。

So estrogen builds up the uterus lining, and progesterone maintains it during the second half of the menstrual cycle.

所以雌激素会形成内膜，而黄体酮会在月经周期后半内膜。

By then, researchers had already discovered that immune cells called macrophages probably contribute to endometriosis and that pain-sensing nerves are also involved.

那时，研究人员已经发现， 被称为巨噬细胞免疫细胞可能与内膜异位症有关， 痛觉神经也参与其中。

After menstruation, the lining of the uterus thickens up again in preparation for a fertilized egg, and inside the ovary follicle develops.

月经后，内膜再次增厚，为受精卵做准备，卵巢内卵泡发育。

If it doesn't manage to embed, then the lining will break down, and menstruation will occur, and the cycle is repeated.

如果它不能嵌入，那么内膜就会破裂，月经就会发生，这样循环就会重复。

If pregnancy does not occur, the lining breaks down and is expelled from the uterus; this is known as menstruation.

如果没有怀孕，内膜会破裂并从排出；这就是所谓月经。

And just because we're boys doesn't mean we… we can't talk you through your first… … " Sloughing off of your endometrial tissue."

尽管我们是男生，不代表我们… … 我们就不能陪你谈你首次… … " 内膜脱落" 。

I actually live with a condition called endometriosis, so I'm quite regularly in pain.

我实际上患有内膜异位症，所以我经常感到疼痛。

If you wanna get into specifics, I have endometriosis, vaginismus and some related conditions.

如果您想了解具体情况， 我患有内膜异位症、阴道痉挛和一些相关疾病。

Endometriosis is another example of a condition that is very cyclic and very related.

内膜异位症是另一个例，它是一种非常有周期性且密切相关情况。

Endometriosis impacts about one in 10 women, so it's as common as diabetes or asthma.

EG: 内膜异位症影响约十分之一女性，因此其普遍程度与糖尿病或哮喘相当。

So I can give somebody tons of estrogen and give them endometrial cancer.

所以我可以给人大量雌二醇，导致他们得内膜癌。

They kind of sit on the top of the lining of the uterus.

它们位于内膜顶部。

But we have a few athletes that have really severe endometriosis.

但我们有几位运动员患有非常严重内膜异位症。