Fingerprints of one hundred nineteen Caucasian females were obtained. Of these females, thirty-four had histologically proven breast cancer, fifty-three were at high risk for development of breast cancer, and thirty-two comprised a control group. The digital pattern frequencies and the pattern intensity index were significantly different between the three groups. The presence of six or more whorls appears significant as noted by 32.4% of breast cancer patients possessing this number of whorls as compared to 3.1% controls. Also of note is that 95% of subjects with six or more whorls either had cancer or were at high risk.