Breast hyperplasia primarily manifests as cyclic swelling and pain in the breasts, often appearing or worsening before menstruation and diminishing or disappearing after menstruation. Mild cases may go unnoticed by patients, while severe cases can affect daily life and work. However, some patients do not exhibit obvious cyclic changes. Symptoms may include unilateral or bilateral breast tenderness or needle-like pain, which can extend to the shoulders, upper limbs, or chest and back areas. A few patients may experience nipple discharge, and the condition can sometimes persist for a long duration, but symptoms typically disappear or lessen after menopause. During physical examination, nodular lumps of varying sizes can be felt within one or both breasts. These lumps are firm but not hard, sometimes tender to touch, and the boundaries between the lump and surrounding breast tissue are not distinct. There is no adhesion to the skin or chest muscles, and sometimes the area may appear as an indistinctly bordered thickened zone.