Breast cysts (galactocele) form in the mammary gland from ductal obstruction. Multiple pathologic entities may produce complex cystic breast lesions. Ultrasound is presently the first primary modality in breast evaluation after physical palpitation. We report a progressive case of multiple cysts in a 32-year-old woman, ranging from 28 mm to 20 mm. Though in-situ milk (sono-penic) appears sterile, the superficial presentation (externally) is that of a firm mass. Due to the known hazards of radioactive mammography, this case report proves the usefulness of sonar to image, map, measure, identify and diagnose breast pathology. In women with dense-heavy breast, ultrasound examination will play an important role in screening palpable and non-palpable masses.