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).
Menstruation is controlled by two hormones namely estrogen and progesterone. When there is imbalance between these hormones or if there is excess secretion of estrogen hormone, it causes abnormal thickening of cellular lining of the uterus, which we refer to as thickened endometrium. 1  Most of the time, abnormal endometrial thickening is non cancerous, unless the hisopathological test suggests its cancerous nature.