22 May 2020

Going Flat after mastectomy refers to not undergoing breast mound reconstruction after breast removal. Some patients are not candidates for reconstruction or it is not recommended, however many women may choose to “go flat” even when breast mound reconstruction is an option. This past October, we posted a research survey aimed at better understanding motivations to forgo reconstruction and to identify factors associated with postoperative satisfaction among patients who participate in online breast cancer communities.

The abstract and poster are now posted on the virtual meeting platform of the American Society of Breast Surgeons. Our findings include:

Demographics and timing of going flat:

  • 940 women completed the survey, mean age was 53 (range 25 – 84)
  • Most patients were white (94%), had private insurance (70%), and were from the US (74%) although 22 countries were represented
  • 85% (801/940) did not undergo breast mound reconstruction at the time of mastectomy
  • 15% (139/940) initially had reconstruction that was subsequently removed

 Top 2 reasons for going flat:

  • 72% desire to avoid foreign body such as an implant
  • 71% perceived lower complication rate from the surgery


  • Only 64% were initially offered going flat as an option
  • 30% felt that their surgeon did not support their decision to go flat

Satisfaction with outcome:

  • 74% agreed or strongly agreed that they were satisfied with their surgical outcome
  • Age, race, bra cup size, and history of prior breast mound reconstruction were not associated with postoperative satisfaction
  • Strongest predictors of satisfaction were having adequate information about surgical options and surgeon support of the patient’s decision to go flat

Our findings reveal a need for additional research into factors that impact patient satisfaction as well as for surgeon education on how to optimally support women who are not interested in breast mound reconstruction.

It is important to note that any medical meeting abstract, whether an oral presentation or poster, has been evaluated by the meeting program committee but has not been subject to rigorous peer review as would occur with a formal manuscript submission. Abstracts (including ours) do not include the full set of results. It is not unusual for additional findings to be included in the eventual publication, some of which may be different than those presented in the abstract. However, we feel that these results are an important starting point for better understanding of patient motivations for going flat, and also point to a need for improved communication on the part of surgeons. We are in the process of completing a full analysis of the data and look forward to sharing the peer-reviewed publication when available. 

On behalf of my co-authors, we would like to thank all who shared and participated in the survey!