Breast hyperplasia refers to the proliferation of epithelial and fibrous tissues in the breast, degenerative changes in the ductal and lobular structures of the breast tissue, and the progressive growth of connective tissue. The main cause of its onset is primarily related to hormonal imbalances. It mainly manifests as menstrual cycle-related pain, occasional nipple discharge, sometimes white discharge, or grass-yellow discharge, often presenting as swelling pain or stabbing pain, which can radiate to the ribs or back pain.