The menstrual cycle is a monthly physiological process that prepares the female body for pregnancy. It is divided into four phases: the menstrual phase, the follicular phase, the ovulatory phase, and the luteal phase. The menstrual phase is characterised by the shedding of the uterine lining and lasts 3-7 days. The follicular phase is the period before ovulation and is marked by the growth and maturation of follicles in the ovaries. It lasts 10-14 days. The ovulatory phase occurs when a mature follicle releases an egg from the ovary. This phase lasts about 24-48 hours. The luteal phase begins after ovulation and is marked by the formation of the corpus luteum. It lasts about 14 days and prepares the uterus for the implantation of a fertilized egg. Visit Outlook Health website to learn more about the menstrual cycle phases and their vital role in preparing the uterus for a healthy pregnancy.