For a breast augmentation using implants, there is no obvious choice between round or anatomical prosthetics.
The choice really depends on the patient, what she wants, her morphology and her breasts.
A round implant has a base in the shape of a circle. From the profile view, it has a slightly rounded appearance.
An anatomical, or teardrop, implant has the natural shape of a breast, especially when seen from the side.
There is always a risk that anatomical implants will rotate or shift, but this is rare when the post-operative precautions are followed.
Choosing between a round or anatomical implant really depends on what the patient wants.
Round implants will give more shapely cleavage with a fuller, more rounded breast shape.
Anatomical implants produce a more natural appearance for a breast augmentation. They are ideal for small breasts or slim patients who want a perfectly natural result.