Lobular hyperplasia and breast hyperplasia are the same, collectively referred to as breast hyperplasia. Clinically, it manifests as cyclical swelling and pain in the breasts, often occurring or worsening during the premenstrual period, and diminishing or disappearing after menstruation. Mild cases may go unnoticed by the patient, while severe cases can affect daily life and work. However, some patients do not exhibit obvious cyclical changes, and some may experience unilateral or bilateral breast swelling or needle-like pain, which can extend to the shoulder, upper limbs, or the chest and back. A few patients may have nipple discharge, and the duration of the disease can sometimes be lengthy, but symptoms usually disappear or lessen after menopause. Upon physical examination, nodular masses of varying sizes can be felt in one or both breasts, which are firm yet not hard, sometimes tender to the touch. The masses are not clearly demarcated from the surrounding breast tissue but are not adhered to the skin or chest muscles, sometimes presenting as indistinctly bounded thickened areas.