The best unbloody method for diagnosis of breast diseases is mammography, possibly with additional galactography or pneumocystography. The best tool in mammary diagnostics is thin-needle punction following palpatoric examination. Thus, the best results are obtained with the socalled triplediagnosis. An additional histological verification is required for every dubious or positive smear, for every mammogram and in negative smears which are conspicuous roentgenologically. Between 1972 and 1975 correct diagnoses were established in 87% using mammography in combination with palpatoric examination. Due to additional cytological examinations the percentage of correct diagnoses could be raised to 92.5% during the last 9 months. The risklessness of aspiration cytology and its advantages over primary specimen excision is pointed out. Typical positive roentgenological findings and the relating cytological results and histological diagnoses are demonstrated.