The ultimate appearance has no standard beyond what the entertainment media promotes. What is the common size and position?
Because it is a potentially dangerous medical procedure with long-lasting consequences, make certain the reasons are not transient.
To preserve breast for better post-op reconstruction, mastectomy may involve removal of breast tissue, without removal of the skin, nipple or areola. This maintains an ideal repository for implant.
With considerable variance in both normal and abnormal areola, a dignified human anatomy poster is available. It was developed as a health-professional patient guide for ob-gyn medical offices.