Doctors use an important blood test called a complete blood count, or CBC for short, to measure the number of each blood cell in your blood sample. If the CBC shows a low number of red blood cells, white blood cells, or platelets, your doctor may look at the cells under a microscope.
In a typical menstrual cycle, estrogen made by the maturing ovarian follicle causes the glands to grow and the endometrium to thicken (partly through an increased blood supply).This thickening of the uterine lining is called the proliferative phase of the menstrual cycle.n a typical menstrual cycle, estrogen made by the maturing ovarian follicle causes the glands to grow and the endometrium to thicken (partly through an increased blood supply).
The changes in the internal uterine lining of the uterus-the endometrium-during the menstrual cycle is termed the uterine cycle of menstruation. These changes occur in response to the hormones, estrogen and progesterone, secreted by the ovaries during the ovarian cycle of menstruation.The Uterine cycle of menstruation starts from the first day of the menstrual period, which is also the first day of bleeding.hese changes occur in response to the hormones, estrogen and progesterone, secreted by the ovaries during the ovarian cycle of menstruation. The Uterine cycle of menstruation starts from the first day of the menstrual period, which is also the first day of bleeding.