Luteal Phase
Updated:The luteal phase is a crucial stage of the menstrual cycle that occurs after ovulation and before the next menstrual period. It typically lasts about 12 to 14 days and is characterized by the production of progesterone from the corpus luteum, a temporary endocrine structure formed from the ruptured follicle that released the egg during ovulation.
During this phase, the uterine lining thickens in preparation for a potential pregnancy. If fertilization doesn't occur, the corpus luteum degenerates, progesterone levels drop, and menstruation begins, marking the start of a new cycle.
Additional Information
The luteal phase is named after the corpus luteum ("yellow body" in Latin) and plays a vital role in fertility. Progesterone, the dominant hormone during this phase, not only prepares the uterus for implantation but also maintains the uterine lining if pregnancy occurs. Some women may experience premenstrual syndrome (PMS) symptoms during the latter part of this phase.
Examples
Tracking basal body temperature, which typically rises during the luteal phase due to increased progesterone levels
Experiencing breast tenderness or mood changes in the days leading up to menstruation, which occur during the luteal phase