Question

Day 20 of menstrual cycle falls under which phase?

• A. Menstrual phase
• B. Follicular phase
• C. Ovulation phase
• D. Luteal phase

Answer 1

The Correct Option is D

In the menstrual cycle, the day 20 is categorized under the "Luteal phase." The menstrual cycle consists of several phases:

• Menstrual phase: Occurs from day 1 to approximately day 5. It involves the shedding of the uterine lining, resulting in menstruation.
• Follicular phase: Starts on the first day of menstruation and ends with ovulation, around day 13 or 14. Hormones such as FSH and estrogen dominate, promoting follicle growth and preparation for ovulation.
• Ovulation phase: Typically occurs mid-cycle around day 14. An egg is released from the dominant follicle in response to a surge in luteinizing hormone (LH).
• Luteal phase: Follows ovulation (approximately day 15 to 28), characterized by the formation of the corpus luteum, which secretes progesterone to prepare the uterine lining for potential implantation of a fertilized egg.

Therefore, day 20 being post-ovulation, falls in the luteal phase, where high progesterone levels maintain the uterine lining.