Breast swelling and lumps can often indicate fibrocystic breast changes, typically caused by high levels of hormones in the body. This leads to the proliferation of stromal and epithelial tissues, forming these hard lumps. To diagnose whether the lumps are due to fibrocystic changes or other causes, such as fibroadenomas or breast cancer which also present as hard lumps, a breast ultrasound or mammography is required. If possible, further confirmation can be made through cell aspiration or MRI. If the diagnosis is simply fibrocystic breast changes, treatment can be administered using traditional Chinese medicine. However, if fibroadenomas or breast cancer are present, further examinations are necessary for a clear diagnosis, followed by appropriate treatment.