Silicone vs saline through the armpit: the honest comparison

Feel and appearance

Cohesive silicone mimics breast tissue most closely and ripples least; saline is firmer, shows edges and ripples more readily in thin patients, and can slosh when under-filled. Under the muscle with good cover, both look natural; in thin patients the difference is visible.

Passing the route

Saline: the empty shell passes any incision and is filled to volume in place — the route's traditional partner, with fine symmetry adjustment possible. Silicone: through a funnel, with a practical size limit that depends on gel firmness; the size-limit article explains.

Failure modes

Saline deflates over days — obvious, safe, and a replacement. Cohesive silicone ruptures silently; the gel stays within the capsule, and the rupture is confirmed on imaging rather than by symptoms. Neither is an emergency; both mean a planned exchange, usually via the fold.

Who chooses which

Most patients with reasonable tissue cover choose silicone for feel. Saline suits patients who want obvious failure detection, have thicker tissue, or want a size the armpit cannot deliver in silicone. Both are approved, warranted implants from established manufacturers; the sizing page covers the rest.