These are follicle stimulating hormone, or FSH, and luteinizing hormone, or LH.

这包括卵泡刺激素（FSH）、促黄体生成素（LH）。

All the developing follicles secrete loads of estrogen, which negatively inhibits pituitary FSH.

所有发育中的卵泡分泌足量的雌激素，通过负反馈作用抑制垂体分泌FSH。

FSH binds to FSH receptors on granulosa cells and they make aromatase and, as a consequence, estrogen.

FSH和颗粒细胞上FSH受体结合，产生芳香酶，进而产生雌激素。

Fertility experts regard a high FSH level as a key indicator of having a low egg count.

生育专家将卵泡刺激素的数值作为重要指标来衡量女性体内卵子数量，数值高则卵子数量少。

Both FSH and LH are secreted by the pituitary gland.

FSH 和 LH 都是由垂体分泌的。

There are two other hormones also involved — the follicle-stimulating hormone, or FSH, and the luteinizing hormone, or LH.

另外还有两种激素——促卵泡激素（FSH）和黄体生成素（LH）。

The presence of high levels of FSH indicates lower numbers of eggs.

高数值卵泡刺激素则意味着更少的卵子。

Less FSH means that there is only enough left to stimulate one follicle.

FSH的减少意味着剩下的激素只够刺激一个卵泡了。

FSH is produced by the body to stimulate the follicles in the ovaries that produce eggs.

卵泡刺激素由体内产生，以刺激卵巢中的卵泡产生卵子。

Pituitary FSH makes the follicles grow and the granulosa cells produce more estrogen.

垂体生成的FSH使卵泡生长，并且使颗粒细胞生成更多的雌激素。

However, estrogen acts a negative feedback signal – that is, it tells the pituitary to secrete less FSH and LH.

但是雌激素却会起负反馈的作用，它会使垂体FSH和LH的分泌减少。

So early in the follicular phase, a small rise in FSH, leads to a large increase in estrogen.

在卵泡期的早期，FSH的量小幅升高，引起雌激素的大量增加。

The estrogen then stops FSH being produced, so that only one egg matures in the cycle.

然后雌激素会阻止卵泡刺激素的产生，这样在一个周期内只有一个卵子成熟。

FSH causes the egg to mature in the ovary, and it also stimulates the ovaries to release estrogen.

促卵泡刺激素使卵子在卵巢成熟，同时也刺激卵巢释放雌激素。

Luteinized granulosa cells secrete inhibin, which inhibits the pituitary gland from making FSH.

黄素化的颗粒细胞会分泌抑制素，抑制垂体生成FSH。

The follicle that has the most FSH receptors hoards most of this hormone, and becomes the dominant follicle.

只有有最多FSH受体的卵泡积蓄最多的FSH，在这个过程中成为优势卵泡。

No ovarian follicles also means no estrogen and progesterone, which leads to high levels of FSH and LH.

没有卵巢滤泡意味着没有雌激素和孕激素，这导致FSH和LH水平处于高位。

Older women have higher levels of a hormone called FSH, which stimulates the ovaries.

年龄较大的女性体内的 FSH 激素水平较高，这种激素可以刺激卵巢。

This leads to low serum estrogen and high FSH and LH.

这会导致低水平的血清雌激素以及高水平FSH和LH。

If that's negative, diagnosis requires serum levels of FSH, LH, estrogen, prolactin, TSH and testosterone.

如果没有怀孕，需要检测血清中的FSH、LH、雌激素、泌乳素、TSH和睾酮水平以进行诊断。