BI-RADS grade 3 for a hypoechoic breast nodule means that the nodule is more likely to be benign and falls under the American College of Radiology’s nodule grading criteria. The BI-RADS grading system is a U.S. breast imaging reporting data system that allows for the correlation of ultrasound images and thus the evaluation of nodules in the breast area to increase the probability of detecting lesions of benign or malignant nature in the nodule. A grade 3 breast nodule that is parallel to the skin or wider than high, usually less than 40 years of age, and round or oval in shape suggests a less than 2% malignancy rate and a high likelihood of benign conditions, such as cystic hyperplasia and muscular cysts of the breast. If the breast nodule is assessed as BI-RADS grade 3 by ultrasound examination, patients are usually advised to have dynamic follow-up in a short period of time, usually every 3 to 6 months, and are advised to keep a good mindset and not to be overstressed in daily life.