Grade of gynaecomastia

Grade or Type Description Severity
 1 A localized button of tissue that is concentrated around the areola Very mild
2 Moderate breast enlargement exceeding areola boundaries
with edges that are indistinct from the chest
Mild to high
3 Moderate breast enlargement exceeding areola boundaries
with edges that are distinct from the chest with skin redundancy present
High and visible
4 Marked breast enlargement with skin redundancy and feminization
of the breast
Severe and visibly feminine