Breast nodules are present in any location on the breast, but are usually more common in the outer upper quadrant of the breast. The majority of breast nodules are benign and are often unilateral or bilateral multiple nodules. The nodules are usually well defined, mobile, not adherent to the skin, and grow relatively slowly. When touching the breast, nodular hardness can be felt. However, breast nodules that are malignant tend to be unilateral solitary nodules with indistinct borders, hard texture, poor mobility, generally adherent to the skin, and rapid growth. When breast nodules appear, it is recommended to consult a doctor in a timely manner, and follow the doctor’s instructions to do breast ultrasound or molybdenum target examination to clearly determine the nature of the nodule, whether it is benign or malignant. According to the condition of the active treatment, if necessary, regular review.