As with any plasticsurgery, breast augmentation
involves some risk of complications although there are many ways to lower the
chance or even prevent certain problems. 
These are some of the examples:
Reducing Tissue Hardening
This complication, which is also called capsular
contracture, is related to bacterial contamination that occurs at the time of
breast augmentation surgery.  For this
reason, plastic surgeons will make
every effort to prevent this from happening.
One of the surgical techniques that prevents capsular
contracture is the Keller Funnel in which the doctors use a cone-shaped nylon
(where the implants are placed) and then squeeze this so the implants can be
inserted into the breast pocket.  
This method can significantly reduce the risk of
contamination because the breast implants are introduced into the breast pocket without having to actually
touch them.
Meanwhile, some plastic surgeons recommend breast massage
after implant surgery because it is believed to prevent the tissue from
becoming hard.  However, this should not
be performed with teardrop-shaped implants and textured implants. 
Reducing Rippling
For patients choosing saline implants, overfilling them can reduce rippling although doing so may void
the devices’ warranty.  Another way is to
use smooth implants and avoid the textured version, especially the one with
“large graininess” which has been attributed to the higher risk of traction
wrinkling. 
Because women with little amount of breast tissue are at
higher risk of visible and palpable rippling, they are generally advised to have
silicone breast implants—which are noted for simulating the feel and movement
of breast tissue and fat—rather than saline implants. 
And to further reduce the risk of rippling, many doctors
place the breast implants under the muscle (instead over it) so there will be
more coverage especially in the upper half of the breasts. 
Reducing Deflation (Only Applicable for Patients with Saline
Implants)
Overfilling saline implants, which usually means adding 25cc
to 3occ beyond the manufacturer’s recommended amount, can reduce the risk of
deflation.  But still, patients who
choose this type of implant should keep in mind that natural deflation can
still happen due to evaporation and other factors. 
According to a study, saline breast implant has a natural
deflation rate of 1 percent per year; for this reason, patients with this
implant would more likely need revisions sooner than women with silicone implants. 
Another advantage of overfilling saline implants is that it
can reduce sloshing (which has been said to affect the implant’s stability). 
Reducing Nipple Numbness
Reduced or complete loss of sensation in the nipples is one
of the most common concerns of breast augmentation patients who are still considering having babies in the
future.  This complication happens due to
the injury to the nerves at the time of surgery. 
To minimize the risk of nipple numbness, plastic surgeons avoid cutting and
cauterizing the area nearest the armpit. 
Instead, they may gently stretch the tissue apart so there will be
enough “breast pocket” for the implants.
By stretching the tissue apart instead of cutting it, there
is less risk of nerve damage.  Take note
that stretched nerves are less likely to result in permanent numbness in the
nipples.
Reducing Downward Displacement of Implants
Downward displacement of the implants, which leads to
sagging breasts, is often caused by large, heavy implants.  This problem is more of a concern with saline implants because they are prone
to sloshing unlike the silicone version. 
It is really hard to tell if someone will experience
downward displacement or not because the level of risk is also determined not
only by the implant size but also by the breast tissue (flaccid vs firm) and
its amount.
In general, women with firmer breasts with a moderate to
significant amount of tissue can accommodate larger implants.  By contrast, patients with flaccid breasts
are often advised to choose silicone implants filled with 300cc to 350cc to reduce the risk of downward
displacement. 
Postponing the Need for Revisions
There is no guaranty that breast implants can last a
lifetime; for this reason, most patients will likely need revision surgery at
some point in their lives. 
Teenage patients in particular will need revisions sooner
than those who will undergo breast augmentation in their twenties.  Women should remember that breast implants are subjected to the
natural wear and tear from daily life’s activities. 
According to surveys, most breast augmentation patients wait
until they reach their twenties before having the procedure. 
Avoiding Less Favorable Cosmetic Outcome
To achieve the most natural result, there is no universal
approach because everything depends on the anatomical features (e.g., amount of
tissue, chest width, waistline, etc.). 
For instance, women who lack breast tissue and fat are generally advised
to use silicone implants rather than saline implants. 
Women with little breast tissue are not advised to use
saline implants because the result is usually breasts that are too round;
higher risk of palpable and visible rippling; and unnatural feel.
Also, choosing implants that are too large in relation to
the body can result to the “heavy top” look. 
Nowadays, the trend is the natural appearance that many plastic surgeons
have noticed that more patients are seeking revisions to downsize their breast
implants.