Mar 31, 2021
LH (luteinizing hormone) encourages the growth of the corpus luteum, which is what we call the dominant follicle after it releases its egg. The corpus luteum secretes both estrogen and progesterone, preventing other follicles from maturing and releasing eggs. If conception does not happen (no pregnancy), this “eggblock” continues until LH levels decline.
Declining LH leads to the degeneration of the corpus luteum. As the corpus luteum breaks down, estrogen and progesterone levels drop. The body knows pregnancy has not occurred so the endometrium also breaks down, restarting the menstrual cycle.
