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).
This occurs when hormone levels drop after menopause, which causes thinning and dryness of the vaginal lining. This can lead to irritation which can cause pain and spotting, especially with sexual activity. Another possibility is buildup of the uterine lining, called the endometrium.his occurs when hormone levels drop after menopause, which causes thinning and dryness of the vaginal lining. This can lead to irritation which can cause pain and spotting, especially with sexual activity. Another possibility is buildup of the uterine lining, called the endometrium.