Breast cystic nodule and nodule 4b are more serious compared to nodule 4b, and the condition should be treated promptly. Breast cystic nodules generally low chance of malignancy, usually about 5%, while breast nodule 4b malignancy may increase, malignancy may be about 20%, if malignant on the body will cause serious impact, may cause life-threatening, so nodule 4b is more serious. Breast cystic nodules need to go to the hospital regularly to do imaging tests, to clarify the diameter of the nodule, if the volume is increasing, it is necessary to do pathological puncture testing, to clarify whether there is malignant changes. Suffer from malignant breast nodules should be timely by way of chemotherapy to inhibit the development of the disease, or take surgical excision treatment, to prolong the patient’s survival cycle, to reduce the impact of sex.