Menstruation will be massive bleeding.In the same position, will also have a case of bleeding must pay close attention, this is the uterus bleeding, endometrial every month, thickening periodically for preparing the fertilized eggs, if attached no fertilization.
In estrogen plus progestin, under the action of endometrial outer tissue and blood will flake, with menstruation, in this process, endometrial uterine fibroids proliferation out often, it is the wall, but also may be benign tumor cells in the three stages in the development of cancer.
First, the estrogen may stimulate the endometrial cells divide, progesterone would inhibit endometrial cells divide, as long as estrogen secrete excessive, will increase cancer mutations.
Second, the cell division is controlled by the immune system, when the immune function drops can also cause cancer.
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