Whether a small breast nodule is important or not is related to the size of the breast nodule pattern, the presence or absence of blood flow signals, benignity or malignancy, etc. A comprehensive analysis is needed. If a small breast nodule has regular margins, it is more likely to be a benign lesion and may be a nodule caused by mastopexy. If the nodule has smooth margins, good mobility, and very slow growth of the nodule, or even no significant changes, it may be a breast fibroadenoma, and the patient can be followed up and observed for a short period of time, with a mammogram every 3-6 months, and if there is no change, follow-up can be continued. If the nodules have unclear boundaries and are less mobile, they may be malignant lesions and require a puncture biopsy and, depending on the pathological findings, then treatment will be tailored to the specific situation. For this condition, patients should keep regular review, maintain regular daily life, eat a light and nutritious diet, do physical exercise appropriately, and maintain a good state of mind.