Gynecomastia is a difficult disease for men to talk about. A big man with a gentle female breast is not curvy and beautiful, but distressing. The traditional treatment method is surgical excision of the developing breast, leaving unsightly surgical scar, but the breast department of Qinhuangdao Women’s and Children’s Hospital has completed the minimally invasive excision of the developing breast under ultrasound guidance, through a (rice-grain-sized) 3mm incision, the operation of surgical excision of the large female breast is completed, starting a new mode of treatment for gynecomastia. The new minimally invasive mode solves the distress of men’s breasts and restores men’s chests, creating history and filling the gap.