If it is benign breast hyperplasia caused by men’s right breast enlargement is generally do not need to receive treatment, especially obvious, affecting the life of the aesthetic can also be treated; if it is malignant breast hyperplasia caused by the right side of the breast enlarged, need to cooperate with the doctor to accept surgery, chemotherapy and other comprehensive treatment. 1. Benign Breast Hyperplasia: Abnormal estrogen level in male body can lead to enlargement of the right breast of men. If it is benign breast enlargement, it is purely the enlargement of breast volume without obvious other symptoms, regular checkups in the hospital will be enough, and generally do not need to receive special treatment; if it is particularly obvious and affects the aesthetics, it is also possible to be treated. 2. Malignant breast hyperplasia: malignant breast hyperplasia causes the right breast of men to become bigger, it is necessary to complete the relevant imaging examination as soon as possible to clarify the analysis of the tumor. According to the staging of the tumor to receive radiotherapy, chemotherapy, surgery, targeted and other comprehensive treatment, as far as possible to extend life. It is recommended that men go to the breast surgery department of the hospital as soon as possible to clarify the specific causes of the enlarged right breast and receive treatment for the specific causes.