There is no specific healing time for a grade 3 breast fibroadenoma; it should be determined on a case-by-case basis. A breast fibroadenoma is a benign tumor of fibrous tissue that develops in the lobules of the breast. The main presentation is a solid nodule, usually painless, solitary and well defined. The current treatment for breast fibroadenoma is surgery. Breast fibroadenoma grade 3, usually benign lesions, the possibility of malignant changes is extremely small, can be regularly observed, suspected of malignant changes, can be surgically removed after the pathological analysis of the excised tissue. If the pathology shows that the nodule is benign, the rest of the treatment is usually not needed. If the pathological analysis shows that the nodule is cancerous, the treatment should be based on the way of breast cancer. In addition to the excision of the nodule, the lymph nodes should be examined to observe whether there is any metastasis, and postoperative radiotherapy should also be performed. Breast fibroadenoma grade 3 is recommended to follow up regularly, and if there is any discomfort, it is recommended to consult the doctor in time and choose the appropriate treatment under the doctor’s guidance.