It is difficult to make 100% accurate predictions following explant. There are a number of factors to consider including age (the breast changes over time irregardless of augmentation), weight change, skin stretch and residual elasticity. Following removal, one can expect: -Loss of volume- Not an exact correlation between pre- and post augmentation due to the changes over time. You may be bigger or smaller than you remember. -Ptosis/sagging-Ptosis develops over time and may be worsened by the presence of an implant. If a patient has pre-explant sagging, removal is likely to worsen this to a certain extent. If there is no ptosis, it does not necessarily mean there will be no ptosis after removal. -Skin laxity/stretch- There is inherent skin elasticity which will allow for some measure of snap back. However, the greater the volume differential pre- and post- the more likely there will be excess skin. In my experience, it is usually a safe assumption that there will be some changes post removal which oftentimes may necessitate further operative intervention (i.e. lift), however this is often a function of size and length of time post op. Small implants which have only been in place for a short period will lead to an improved response/recoil post removal. With regards to your specific question, the changes in size post explant vs. pre-augmentation are often a function of time and the changes that occur to the native breast (weight changes/hormonal changes). Additionally, the process of tightening the breast envelope and skin removal can also play a (small) role in the ultimate post op volume. As always, discuss your concerns with a board certified plastic surgeon (ABPS). Donovan Rosas MD Board Certified by the American Board of Plastic Surgery Member: American Society for Aesthetic Plastic Surgery, American Society of Plastic Surgeons RealSelf Top 100 RealSelf Hall of Fame