Thanks for the query to H.C.M. Forum.
Few , question are unanswered as,
Fatty breast that hang loosely and are frequently , but not necessarily over-size is a common cosmetic mammary complaint.
The cause of the condition is regression from a former fullness, due to
1 over-development at adolescence,
2 A terminated pregnancy
( if any),
If obesity is cause ,remove it.
If any other cause, than plastic reconstruction is only one option.
Hope I have answered your question.
If further any question I will help.