Trouble deciding size: 300cc or 330?!! Help! Im 165cm 50kg and thin. I want a natural look!

Great question!  The difference of 30cc's is very minimal.  Generally I always tell patients to pick the bigger of two sizes, because once they are inside the body, the volume does not look nearly the same as it does outside the body - it will be significantly smaller.  I would say there are more patients that wish they would have gone bigger, and only very few wish they were smaller.  But there are other factors such as breast width, projection, ect that will determine how the final outcome will look so if both implants match your body frame then usually the bigger implant is the way to go.Best of luck and hope this information helps!- Dr. Roger Tsai   @DrRogerTsai

The difference is only 2 tablespoons so doesn't make much of a difference.  The implant selection should be based on a combination of your desired size, soft tissue dynamics, breast base diameter and skin elasticity.  I recommend an in-office examination as well as a detailed discussion with a surgeon who you are comfortable with.   Finally, make sure your surgeon is a Double-Board Certified Plastic Surgeon certified by the American Board of Plastic Surgery (ABPS), a member of the American Society of Plastic Surgery (ASPS), a member of the American Society of Aesthetic Plastic Surgery (ASAPS), and a fellow of the American College of Surgeons (FACS).Best,Dr. DesaiBeverly Hills Institute for Aesthetic Plastic SurgeryHarvard Educated, Beverly Hills & Miami Beach TrainedDouble Board-Certified, Double Fellowship-Trained Beverly Hills Plastic Surgeon

the implant size is up to you.  In my practice the most common size I use is 330 and it will may be too large for you in my opinion.

Hello and thank you for your question. 300 and 330cc are very close in size.  I may also advise considering submuscular placement of your implants.  There are several advantages
and disadvantages to over vs under the muscle.  Under the muscle has the
advantage of lower capsular contracture rates, less risk of rippling, and
better visualization with future mammograms.  Most patients say that under
the muscle also has a more natural look and feel.  The size, shape,
and profile of the implant is based on your desired breast
size/shape, your chest wall measurements, and soft tissue quality. 
This decision should be based on a detailed discussion with
equal input from both you and your surgeon.  This entire surgery can be performed with a
small incision technique.  Make sure you specifically look at before
and after pictures of real patients who have had this surgery performed by your
surgeon and evaluate their results.   The
most important aspect is to find a surgeon you are comfortable with. I
recommend that you seek consultation with a qualified board-certified plastic
surgeon who can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.  FACS
Harvard-trained plastic surgeon

Hello,Cosmetic plastic surgery is a field of medicine that is just beginning to develop and utilize data to optimize techniques and choices for better outcomes and lower complication rates. A 14 point plan has been developed and published this year in PRS, which seeks to optimize breast augmentation results and minimize complications, especially capsular contracture, through reduction in bacterial contamination, the most common negative phenomenon of breast implants. Of those 14 points, periareolar incisions and subglandular implant placement are not recommended. Instead, a dual plane/sub-pectoral placement via an inframammary incision is preferred. Regarding your goal of obtaining a 'natural' appearance, sub-pectoral placement would be preferred, as would a lower profile implant. Additionally, implant volume is perhaps the most important variable to perceived outcome: the larger the implant, the 'faker' the result. If your surgeon isn't an ABPS certified/ASAPS member surgeon who specializes in breast surgery, you may consider consulting with a few. Best of luck!

At your size you can easily handle either size. 30cc is not a big difference. If all else fails I would go with the larger size since more regrets from not going a little bigger than a little smaller. Good luck.

It’s a pleasure to answer this question! Smaller implants lead to more natural looking results. However, both the 300 and the 330 are considered small. I suggest the one which better matches your breast measurements. Under the muscle is also more natural so be sure you discuss this option with your surgeon. 
Good luck. Dr. Aldo

There really isn't much difference between 330 vs 300.  The 330 cc implant is slightly wider and taller and not much difference in projection.  You should trust your plastic surgeon to pick the right size for you.  I believe the more important questions is the profile you pick (moderate vs moderate plus vs high) because that will determine the shape of the breast.  Good luck! 

Patients often think in terms of cup size when considering augmentation. Unfortunately, devices are sized in terms of milliliters (cc) of volume. This can lead to some confusion when sizing. Additionally, it is important to remember that cup size itself is not standardized with variations from one manufacturer to another. Unfortunately, as many women can attest their cup size in an industry leader such as VS is not necessarily transferable to another brand.
Another point which is often under appreciated is that of anatomy and starting point. Any implant will add volume to the volume which is already present. The implant is additive. A particular volume will not necessarily confer the same cup size to different patients (often times it will not even confer the same cup size to different breasts in the same individual...remember they are "sisters" not "twins"). 
A general rule of thumb is that 125cc can represent somewhere between 1/2 to a full cup size increase. Smaller volume differentials (25-50cc) are typically less consequential representing a volume change of less than a shot glass. However, I have found these numbers, at least anecdotally, to be of little help. Patients often present with notions/goals which do not correlate with these sorts of sterile volumetric assessments.
When sizing patients, there are a number of useful tools including:
-3D imaging (has the added benefit of offering a volumetric analysis of the pre-operative breast)
-Breast sizers (rice bags)
-Goal photos
I also recommend that patients commit to a particular look rather than a cup size. Once a patient settles on a look that pleases them the overall cup size increase becomes less relevant.The key to obtaining a natural result is to stay within the parameters defined by your BWD. This will ensure that you avoid the dreaded "fake" look. With regards to your particular choices, I would not fret over 30 cc. This volume is negligible (6 teaspoons) and will likely be indistinguishable post op. As long as you have been appropriately sized (according to your breast width diameter-BWD), either should be fine.
As always, discuss your concerns with a board certified plastic surgeon (ABPS)

Dear Bcupgirl,breast implant type and sizing selection is a complicated process and requires a detailed consultation that includes a discussion of your goals, a detailed examination, and a lengthy discussion. But the decision will always start and end with the patient. When it comes to sizing, we have all of our patients find 3 photos of their desired breast size. We ask for naked breast photos because clothing can obscure the true size (push up bras). Next, we consult with patients and go over the photos and take detailed breast measurements during a physical exam. Next, we using a sizing algorithm to determine a range of implants that will work based on the exam and the measurements.Lastly, during the operation, we use silicone sizers in the operating room to see how the size actually looks in the breast. We sit the patient up in the operating room, while asleep of course, and compare the sizer result with their desired look photos. If it is too small, we start the process over with a slightly larger implant. We don't stop until we get the perfect match.Of all of my breast augmentation patients, every one of them has been happy with their size due to this detailed and meticulous process. You don't want to invest time and money into a result that is either too big or too small.You should discuss your concerns with a board-certified plastic surgeon and make sure that your surgeon understands your goals.Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery  
Member, Am. Society of Plastic Surgery