Secondary hypogonadism can be due to hypothalamus or pituitary gland dysfunction; either from an inability to produce gonadotropin-releasing hormone or luteinizing and follicle stimulating hormones, or suppression from other hormones, like prolactin or thyroid hormone.

继发性性腺减退症可由下丘脑或垂障碍导致，既可是促性腺激释放激、黄生成和卵泡刺激的生成力低下，也可是以上激的分泌受到了其他激的抑，泌乳或甲状腺激。

And the hormone prolactin is connected with lactation, which is the production of milk by mammals.

催乳激与泌乳有关，它是哺乳动物分泌乳汁的过程。

He talked about the hormone called prolactin which he said was connected to lactation.

他谈到了一种叫做催乳激的激，他说这种激与泌乳有关。

Also in lactation, hormone levels increase in response to nursing, which causes an increase in milk production.

同样在泌乳过程中，激水平会随着哺乳的进行而升高，从而导致泌乳量的增加。