What are the biological reasons for having menstruation?
Biological reasons for having menstruation:
In order to better understand the biological reasons behind the menstruation, it is necessary to understand the human parts of the women in detail. There are two ovaries in the normal women, which can carry a certain amount of eggs in each ovary. During the middle of the menstrual cycle, i.e., about 12-16 days of the first day of the period, the eggs in the ovaries start maturing and are released within the uterus through the Fallopian tube. This process is called ovulation and the important sex hormone, estrogen is responsible for the growth and release of the eggs. These matured eggs indicate that they are ready to be fertilized with the male sperms. If they are fertilized, the women become pregnant, for which the sex hormone progesterone will be helpful in further growth of the fetus. But, in case the matured eggs are not fertilized, it is necessary to clean up the uterus for the next ovulation process. Hence, the uterine lining breaks and releases all the blood and tissue stored after the ovulation process.