Breast nodule grade 3 usually refers to breast nodule grade 3. Grade 3 nodules can be treated by surgical removal of the diseased tissue and anti-infection treatment. Breast nodule grade 3 is mostly suggestive of benignity. If the examination reveals that the breast nodule is enlarged, has a space-occupying lesion or other abnormalities, there may be a possibility of malignancy, and surgical excision may be considered. After surgical excision, local tissues should be examined for pathology, and if malignant lesions have already appeared, further surgical excision is needed to prevent further spread of cancer cells. Meanwhile, for breast nodules caused by breast hyperplasia, breast fibroadenoma and other breast nodules grade 3 adopting conservative treatment, it is recommended to carry out a follow-up or re-examination every 3-6 months. Nodules caused by inflammatory reaction can be relieved by anti-infective treatment, such as application of penicillin. Breast self-examination is recommended to understand the changes in the breasts. It is recommended to have a nutritionally balanced diet, regular life, proper exercise, and maintain a happy mood, etc., and to go to the hospital for regular rechecking. If there is any discomfort, go to the hospital in time, under the guidance of the doctor targeted treatment, to prevent delays in the condition.