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Mention the frequency and duration of menstrual cycle in human females.




  • Menstruation occurs if the ovum released by the ovary does not get fertilized by sperm at the time of ovulation . Since the process of menstruation in a woman occurs again and again after a fixed period of 28 days , it is also known as the menstrual cycle. 
  • The average duration of menstrual cycle is 28-30 days and can vary between women
  • It lasts for 3- 7 days .

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MENSTRUAL CYCLE PHASES Egg travelers to uterus of not fertilized dissolves- Lining of the uterus continues to thicken Days of the Average Menstrual Cycle Your Period Lining of uterus sheds New Egg matures Lining of uterus begins to tracken Ovulation Egg released

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo