A natural breastbone creates separation between the breasts. When one or both implant pockets extend too far toward the center, that separation can narrow or disappear. This is called symmastia. It may look like the implants are touching or the skin over the breastbone is tented forward.
Normal cleavage is not symmastia. Diagnosis during a breast revision consultation considers the resting contour, movement, original anatomy, implant position, and whether the central skin has lifted from the chest wall.
Why the pocket can cross the midline
Over-dissection toward the sternum, implants that are too wide for the chest, weak tissue, pressure from large implants, and repeated surgery can contribute. Natural chest shape and close-set breasts also affect appearance. The problem is structural, not something a supportive bra can permanently repair.
Revision rebuilds a boundary
Correction may close the inner pocket with sutures, reinforce tissue, create a new pocket plane, or change implant dimensions. A neosubpectoral pocket uses the existing capsule strategically in selected patients. The appropriate plan depends on tissue quality and prior surgery.
Downsizing may reduce pressure on the repair. Implant exchange should be based on chest width and goals, not cup-size labels. Internal support materials are not automatic and bring their own cost, healing, and long-term considerations.
Recovery protects the repair
Central compression or a specialized bra may be recommended. Activity restrictions matter because early force can stress the reconstructed boundary. Revision also creates new scars and cannot guarantee perfect separation or permanence.
Other pocket problems can coexist. Compare bottoming out, double bubble, and implants that slide outward when lying down to understand why direction of displacement changes the repair.
Frequently Asked Questions
Can exercise cause symmastia? Normal activity alone rarely creates it in a healed, well-designed pocket, but early strain can stress a repair. Follow the operating surgeon’s restrictions.
Can symmastia be fixed without changing implants? Sometimes, if the implants fit the chest and the tissue can support repair. Wider or heavier implants may need to be changed.
Will cleavage look normal immediately? Swelling and support garments affect early appearance. Final settling takes time, and some asymmetry may remain.
Symmastia Revision in Newport Beach
Dr. Ruben Castro evaluates chest width, central skin adherence, muscle, capsule, implant dimensions, scars, and tissue strength during a Newport Beach consultation. Operative records are helpful. The plan may include pocket repair, reinforcement, exchange, or implant removal, but it should use only the components needed for that anatomy. The aim is a safer, stable central boundary rather than forced or artificial cleavage.
