#Breast Implant Complications June 18, 2026 By MSc, MD Ho Cao Vu

What is symmastia after breast augmentation?

Symmastia is a complication that can occur after breast augmentation, in which the breasts appear to merge in the center, eliminating the natural cleavage and midline separation.

This condition is often caused by factors such as choosing implants that are too large for the patient’s anatomy, overly aggressive dissection of the implant pocket, especially across the midline, and inadequate formation of the lateral pocket, which can lead to persistent pressure on the cleavage area.

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