A review is presented of 2,000 consecutive new, patients with breast complaints. Emphasis is placed on the specific complaint as correlated with patient age and the incidence of breast cancer. The initial complaints were a lump (50%), an abnormal mammogram (32%), other complaints (8%), breast pain (6%), and nipple discharge (4%). Follow-up information was available for 1,889 patients. The majority of the patients (68%) were under 50 years of age. Of 831 patients to whom a biopsy was recommended, 720 ultimately had a biopsy and 147 cancers were identified. Sixty-five per cent of the cancers were in women aged 50 years or greater. Of the patients aged 50 years or older, 16.1 per cent had breast cancer, while only 4.0 per cent of the patients less than 50 years and 0.8 per cent of the patients less than 30 years of age had breast cancer. The author concludes that the overwhelming majority of patients (92%) referred to a breast surgery practice do not have malignancy. Thus, primary physicians undoubtedly see even a smaller per cent of breast complaints ultimately result in the diagnosis of breast cancer. There is a need to better inform the public as to the significance of breast complaints and to establish more specific criteria for biopsy, particularly in the young, professional, liability threats not withstanding.