Left breast hypoechoic nodule grade 3 is the more common conclusive opinion when performing ultrasound in clinical examination for the breast, that is, the patient’s left side of the breast grows a nodule, the nodule in the ultrasound display shows hypoechoic. Left breast hypoechoic nodule grade 3 is hypoechoic should tend to be benign, the possibility of malignancy is basically none. In the imaging examination, often the nature of the found occupation will be categorized, directly in the form of a score to indicate the score, the lower the closer to the benign, for grade 4 or more occupations have the possibility of malignancy, for the patient’s own situation can be closely observed, do not need to be any treatment. If you are not completely sure or if the space is palpable and large, you should consult an experienced breast surgeon and surgery may be necessary.