Breast nodules have a high likelihood of grade 3 benign lesions and less than 2% likelihood of malignant lesions. There is no clear definition of a breast nodule, just a common name. Breast nodules may be normal glands or benign or malignant tumors. Medical evaluation of lesions based on imaging is divided into grades 0 to 6. If a breast nodule is evaluated as grade 3, it indicates a high likelihood of benign lesions and a low likelihood of malignancy, and the patient needs to be rechecked once every 3 to 6 months. If everything is normal on review, there is no need to worry too much. If abnormalities are detected during the review, it is necessary to find a professional doctor to provide targeted treatment according to the results of the examination.