Bilateral calcified breast nodule 4a indicates that the patient’s breast nodule has the possibility of cancer, but the relative chance of cancer is very low. Bilateral breast calcified nodule 4a is the score of benign and malignant degree of breast in breast ultrasound, which is often classified into 0~6, in which the higher the classification of breast level, the higher the possibility of malignant change of breast, and the 4 categories are divided into 4A, 4B and 4C according to the specific conditions of breast. 4A has a relatively low chance of cancer, but there is a possibility of cancer, it is recommended that patients do cytological puncture of the breast for pathological diagnosis, if the results of the examination show benign, it can be rechecked every six months in the hospital, if it is malignant, it is necessary to be treated according to the specific type of pathology with surgical resection of the lesion as the mainstay, and radiotherapy as an aid. It is recommended to go to the hospital in time, under the guidance of the doctor to clarify the diagnosis, targeted treatment, so as not to delay the condition.