One of the most significant causes of symmastia is improper surgical technique. According to a study published in the
Aesthetic Surgery Journal, inadequate dissection of the implant pocket can result in medial displacement of the
implants, leading to symmastia. Similarly, over-dissection of the pocket can weaken the medial breast tissue and cause implant migration towards the midline, resulting in symmastia. Implant size and placement are also important factors that can contribute to symmastia. Larger implants have a higher risk of causing symmastia due to their increased weight and volume. Additionally, subglandular placement of implants (above the muscle) has been associated with a higher incidence of symmastia compared to submuscular placement. Tissue quality is another factor that can affect the development of symmastia. Patients with thin or weak breast tissue are at a higher risk of developing symmastia due to their reduced ability to support the implants. Similarly, patients who have undergone previous breast surgeries may have compromised tissue quality, increasing their risk for symmastia. Patient factors such as genetics and body habitus may also play a role in the development of symmastia. Patients with a wide
sternum or narrow chest wall may be predisposed to developing symmastia due to their anatomy. == Treatments ==