Breast lumps after 2 years of weaning may be caused by breast cysts, breast hyperplasia, breast cancer and other diseases. 1. Breast cysts: a common benign lesion in women, its symptom is a breast lump, and the lump is filled with liquid, if left untreated for a long time, it will lead to breast abscess, atypical breast hyperplasia, etc. It can be treated by puncture aspiration and surgical excision. 2. Breast hyperplasia: due to endocrine hormone disorders caused by various reasons, patients will have lumps when touching their breasts. It is recommended to pay attention to the conditioning of life, and take medicines such as lactofetish tablets as prescribed by the doctor for treatment. 3. Breast cancer: malignant tumors caused by proliferation of breast tissues, the symptoms of which are lumps in the breast, accompanied by local pain. It can be treated by mastectomy, chemotherapy and radiotherapy according to medical advice. At the same time, 2 years after weaning found a hard lump in the breast may be breast fibroadenoma, chronic inflammation of the breast and other diseases, need to be carefully identified. If you have been weaned for 2 years and have hard lumps in your breasts, it is recommended that you go to a regular hospital as soon as possible for relevant examination and treatment, so as not to delay the time of treatment.