The menstrual cycle is a natural and vital process in the reproductive system of individuals with a uterus. Understanding its phases can provide insights into one’s health, fertility, and overall well-being. This guide breaks down the menstrual cycle into its four main phases, highlighting the key events and hormonal changes that occur in each.
1. Menstrual Phase
Duration: 3-7 days
The menstrual phase marks the beginning of the cycle, starting on the first day of menstruation. During this phase, the uterine lining (endometrium) that was built up in the previous cycle is shed, resulting in menstrual bleeding.
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