👉 The term "luteum" is a medical term that refers to a small, oval-shaped organ located in the pelvic cavity. This organ plays an important role in female reproductive functions and development.
It's important to note that the luteal phase of月经 (周期) occurs around 14 days after ovulation (the time when a sperm enters the uterus), which is at the beginning of the menstrual cycle. During this period, the lining of the uterus becomes more fertile, leading to
luteum