Abstract:Breast cancer is the malignant tumour with the highest incidence rate among women. Axillary lymph node status is very important for clinicians to judge the condition of breast cancer, choose treatment and analyze prognosis. Because of its convenience, three-dimensional Doppler ultrasound is widely used in clinical practice. In recent years, many literatures have reported on three-dimensional Doppler ultrasound and the evaluation of its diagnostic value combined with other indicators and techniques. This paper will summarize the related research.