Mammary gland hyperplasia, referred to as mastopathy, is caused by excessive hyperplasia and incomplete replenishment of the breast parenchyma due to disorders of female hormone metabolism in the body, and is a common disease in women, commonly seen in middle-aged women, and rare in adolescence and postmenopause. However, with the improvement of material living standard, more and more young girls around 20 years old are seen with obvious clinical symptoms. This suggests a tendency for the disease to become younger. The duration of the disease varies from a few months to more than 10 years, with the prominent manifestation being breast pain and lumps, characterized by a menstrual-related cycle in some patients.