After completing the questionnaires at baseline, participants in the experimental group will be asked to receive a pamphlet and an E-based & personalized breast reconstruction surgery decision aid at clinic.

After completing the questionnaires at baseline, participants in the control group will only receive a pamphlet as usual care

This decision aid contains information regarding surgical options, including breast reconstruction and mastectomy, such as the advantages and disadvantages, the complication probabilities of each option, a value clarification exercise for the patient's self-evaluation, and a summary of the participant's decision-making process.

The Body Image Scale (BIS) has ten items rated on a four-point Likert scale (0 [not at all] to 3 [very much]), with total scores ranging from 0 to 30. Higher scores indicate greater BI distress.

Decision Regret Scale (DRS) accesses "distress or remorse after a surgery decision". This instrument contains 5 items. The items were summed, divided by 5, and multiplied by 25. Higher scores indicate greater decision regret.

Decision Conflict Scale (DCS) accesses the perception of uncertainty in information, values or support for surgery options. This instrument contains 16 items and was developed by O'Connor. The items were summed, divided by 16, and multiplied by 25. Higher scores indicate greater decision conflict.

The Hospital Anxiety and Depression Scale (HADS) assesses symptoms of anxiety and depression. The HADS includes 14 items, of which 7 measure anxiety, and 7 measure depression. All items are scored using a 0-3 point scale, with higher scores indicating more depressive symptoms. Cut-off scores are used to categorize anxiety and depressive symptoms, with values of over 8 indicating possible anxiety and depression, and 11 or above indicating probable anxiety.