A breast enlargement with blood flow signals may be a breast nodule that is growing at a faster rate or there may be abundant blood flow in the breast gland. When a breast ultrasound reveals breast enlargement with blood flow signals, it may be that the breast nodule is growing at a faster rate, but a pathology examination is needed to puncture the enlarged tissue and diagnose the benign or malignant nature of the enlargement, and then treat it accordingly. Breast hyperplasia with blood flow signals may also be rich in blood flow within the breast glands. If pain, redness and swelling occur in the breast at the same time, it may be mastitis, and you need to go to the hospital to improve the relevant examination so as to avoid deterioration of the disease. Breast hyperplasia refers to a substantial benign hyperplasia of the breast location due to endocrine hormone disorders. If there is a blood flow signal, the disease may continue to develop, and follow-up diagnostic treatment is needed. If there are blood flow signals of breast hyperplasia, it is recommended that the patient go to the hospital in time, to clarify the cause of the disease under the diagnosis of a professional doctor, and to carry out targeted treatment.