The third stage of follicular development starts when the graafian follicles are ready and occurs during the follicular phase of the menstrual cycle.

第三阶段——格拉夫卵泡准备好了，在月经周期中排卵。

The second stage of follicular development begins for a few lucky primary follicles with the first menstrual cycle in puberty, and a few more primary follicles go into the second stage with each subsequent menstrual cycle.

少数幸运的初级卵泡可以随着青春期第一次月经周期进入第二阶段，还有更多的卵泡也幸运地随着，接下来的月经周期进入第二阶段。