Why Does the Surgeon Mark Your Chest Before Surgery?
Marking is done standing up because breast landmarks shift the moment you lie down — the drawn lines carry the upright plan into the operating room.
Shortly before surgery the surgeon draws on the chest with a skin marker: the midline, the breast footprint, the fold under each breast, and the boundaries of the planned implant pocket. It happens while you stand or sit upright, because gravity-defined landmarks such as the fold flatten and shift once you lie on the operating table.
A map the operation follows
On the table, tissue spreads and reference points blur; the ink lines remain a stable record of the upright plan, guiding pocket boundaries and symmetry checks during the operation. Marking is also a final confirmation step — you are awake, and the surgeon can talk through the plan on your own skin one last time.
Fold position, chest wall shape, and existing asymmetries differ between individuals, so the drawing is customized rather than templated. If a line surprises you — say, the new fold sits lower than expected — ask about it during marking or at the final consult before anesthesia begins.
MediIndex articles are for general information only and are not medical advice, diagnosis, or advertising. Outcomes vary by individual — consult a board-certified specialist for personal decisions.