May 4, 2026
Mastectomy bra fitting after surgery
Prosthesis weight, pocket depth, band placement near scar tissue, and the importance of a certified specialist fitter.
Mastectomy bra fitting is a specialist area. The variables involved — prosthesis weight and type, pocket construction, band tension near scar tissue, and the relationship between the prosthesis and the bra's cup geometry — are not addressed by standard bra-fitting guidance, and a certified mastectomy fitter is the appropriate first resource.
This guide provides an orientation to the key variables, so that a consultation with a specialist fitter can be as productive as possible.
The prosthesis question first
The correct mastectomy bra is largely determined by the prosthesis it is designed to hold. Prostheses vary significantly in:
Weight and volume: prostheses are sized to match the remaining breast in both volume and weight distribution. A pocket designed for a lighter prosthesis will not hold a heavier one correctly, and an incorrectly distributed weight will cause the bra to pull at the back and sit unevenly.
Shape: prostheses are produced in triangular, oval, and full-breast shapes, with variations in projection profile. The cup shape of the mastectomy bra should match the prosthesis profile.
Contact surface: some prostheses have a skin-adhesive surface and are worn directly against the chest wall inside the pocket; others are non-adhesive. The pocket construction differs for these two types.
A certified mastectomy fitter will typically assist with both prosthesis selection and bra selection, and the most reliable process is to address them together.
The mastectomy bra: construction requirements
Pocket depth and security: the pocket must hold the prosthesis firmly throughout a full day of movement, without allowing the prosthesis to shift within the pocket. Test this during the fitting: move naturally, raise your arms, lean forward.
Soft seam construction at the chest wall: the fabric that lies against the scar area should be smooth, soft, and without hard or raised seams. In the early months post-surgery, even seams that seem minor in a fitting can become uncomfortable over a full day of wear.
Band placement: the band runs across the back and sides at the level of the underbust. If the band crosses a scar line from an auxiliary lymph node dissection (ALND) or similar procedure, the band width and tension need to be adjusted to avoid pressure on sensitive scar tissue.
Wireless: most mastectomy bras are wireless, for the same reason that soft-cup bras are recommended post-surgery generally. Even in a well-healed long-term post-surgery context, many people prefer to remain wireless for comfort.
Progression after healing
In the period one to two years post-surgery, when healing is complete and the scar tissue has matured, some people progress to more structured mastectomy styles that use underwire in a modified form — typically with the wire running outside the scar area. This is a specialist fitting decision, and the same certified mastectomy fitter is the appropriate resource.
The broader context is in the postpartum and medical lingerie guide. For the period immediately after surgery, see soft cup bras for post-surgical comfort.