Does symmastia get worse over time?

I am sorry to hear about your concerns regarding breast implant mal position. Symmastia and other types of breast implant malposition problems do not necessarily get worse over time. At some point postoperatively, the  breast implants will reach a "stable state" where no  significant further movement is expected.  This is one of the reasons why I suggest patients avoid evaluating the outcome of breast augmentation surgery for at least six months to one year after the procedure was performed.  Generally, at that point, the breasts have reached their "final" state;  any potential need for revision surgery can do more accurately determined. You may find the attached link, dedicated to symmastia  concerns, helpful to you as you learn more. Best wishes.

The appearance of symmastia occurs when the skin over the sternum or breast bone is pulled away from the bone. This can occur immediately following breast augmentation when the implant pockets are developed too close together, and in the worst of circumstances, when they connect with one another. It can also occur over time as the breast skin slowly stretches and pulls away from the sternum. Both cases can be corrected surgically, but require advanced techniques with relatively lengthy surgery and expense. Contact an experienced plastic surgeon for quality advice.i hope this helps.