What are the different shapes of Breast Implants?

Breast implants can be round or tear-drop (anatomic). All come in different projections and volumes. Find a Board Certified Plastic Surgeon and you can see all these shapes during your consultation.

There are tw: round and anatomical (or "teardrop") shaped. Round implants have a more circular shape and anatomical are in the shape of a teardrop. 

Implants either are round or oval.  This refers to the base of the implant, ie what it looks like from the front.  Implants can also be round or tear drop shaped.  This refers to what the implant looks like from the side.  Within these shapes, implants can have low projection, moderate projection or high projection, ie how far forward the implant projects, to satisfy patients wishes for more or less projection of their breasts.  The implants also come with smooth walls or textured walls.  With so many options, I urge you to have a consultation with a board certified plastic surgeon to discuss this in detail.