Also known as: 女性化乳房, 여성형유방증
A hormonal imbalance disorder in men that notably results in real breast tissue growth due to high Estrogen levels.
Not to be confused with Manboobs (<i>adipomastia</i>, sometimes called <i>pseudo</i>gynecomastia, caused by fat accumulation) or actual womens' breasts on a male character, although the tag is sometimes used loosely for fetish purposes to describe just these things.