Can male breast development bring about heart shadow 1.Simple observation: For physiological breast development in adolescence, it can be temporarily simply observed, if it lasts for more than six months without remission can consider internal medicine treatment, and more than one year without remission can consider surgery. 2.Treatment of underlying diseases: For the treatment of primary diseases such as cirrhosis/gonadal dysgenesis, mammary gland development can be spontaneously relieved. 3.Discontinuation of drugs that cause breast development: For drug-based breast development, most of them can be relieved by discontinuation of drugs. 4.Medical treatment: Tamoxifen can be used for those who have no effect by simple observation 5.Surgical treatment: For adult male breast development, surgery can be considered for those who cannot be relieved by observation for more than 1 year, those with lumps, pain and discomfort, those with image quality of life, those with psychological stress affecting appearance and other patients who request surgery.