Breast nodule grade 3 is a classification of breast nodules, which mainly represents benign masses of the breast. Benign breast nodules are mainly ovoid in shape, mostly cherry-sized, with smooth and tough surface, clear border, no adhesion with skin and surrounding tissues, easy to be pushed in the breast, with sliding sensation, no enlarged lymph nodes in the axilla, complete envelope and slow growth. Although the possibility of benign nodules becoming cancerous is small, there is still a possibility of cancerous transformation. Therefore, the treatment is based on the principle of surgical excision, which can be performed under local anesthesia, and the choice of incision should take into account the convenience of tumor removal.