Radiographic examination of the breast has been so improved that it became a routine complement to physical examination. From November 1, 1983 through September 30, 1984, 684 patients with complaints of various breast problem were examined by low-dose film mammography at Yoon Dong Hospital, Yonsei University. Among them, a comparative studies, independently conducted physical examination, 97 cases of film mammography, 35 cases of ultrasound mammography, 16 cases of aspiration cytology, and 3 cases of galactography were performed for our pathologically proven 98 cases of breast diseases. Combined and complementary studies for breast diseases were analyzed in 37 proven cases and authors found that specificity of those combined immediate complementary study techniques for breast diseases were 94% under dose cooperation with surgeon in Yong Dong Hospital, Yonsei University.