This is the condition in which a male breast is disproportionately developed. Gynaecomastia is considered normal in children up to 2 years, in adolescents (over half of them have gynecomastia, the majority of which resolves spontaneously) and in the elderly.
In adults, however, a certain cause should be sought followed subsequently by the proper treatment. Among the possible causes is the consumption of anabolic drugs, marijuana and certain medications (e.g. amiodarone).

