Lesions of female breast are very common. The commonest investigation is mammography but due to difficulties in interpretation of mammogram as the delineation of the lesion margin or assessing the size of the tumor arising In dense breast in addition to the hazards of ionizing radiation to young females, so Ultrasound is considered the investigation of choice in evaluating breast masses in pre-mammographic age women, pregnant, lactating females, and in-patient with dense breasts.