Education for breast self-examination, clinical examination, and fine needle aspiration biopsy was carried out in 1915 women, aged 16 to 74 at 3 communes (ThÞnh §¸n, Trung Thµnh, T©n Thanh) in Th¸i Nguyªn City. Results indicated that: breast cancer was detected in 0.1% of cases while other breast diseases were found in 4.7% of cases. Breast self-examination in very helpful in the diagnosis of breast diseases. The researchers recommended that people need to be educated how to self-examine their breast in order to reveal breast cancer and other breast diseases.