36G/H looking to reduce to 36 B/C - is a B cup too small?

During a reduction, enough healthy tissue needs to be "left behind" so healing is uneventful.  Even when patients want to go as small as possible, an H Cup to a B cup is unlikely.  Best of luck, Dr. Greenwald

Hi and thanks for your question.  Bra size is difficult to predict following a breast reduction.  This is because bra size isn’t standardized.  In addition, the shape of the breast may change after surgery which may have a different fit into a particular cup size.  In general, approximately 50% of the breast volume can be safely removed during a breast reduction.  For a large-breasted woman, this will lead to a marked change.A visit to a plastic surgeon's office will help you to understand if you're a candidate for the procedure, and what aesthetic outcomes are realistic in your particular case.  In order to get a qualified, ethical, and expert opinion on your surgical options and expectations, always schedule an in-person office consultation with a plastic surgeon certified by the American Board of Plastic Surgery.
Best of luck,
Keith M. Blechman, MD
New York, NY

Starting from an H cup, a small B is likely unrealistic both in terms of proportion and blood supply issues.  Bra sizing is inconsistent in the US. Rest assured that you will be much smaller. Best wishes.

Breast reduction eligibility and coverage by insurance varies from one insurance carrier to the next, and cannot be determined based on cup size, but only based on an in-person examination to figure out how much tissue the surgeon needs to remove.  You also often have to qualify for multiple other criteria from your insurance carrier, so be sure to request their breast reduction coverage policy ahead of time before your plastic surgery visit to ensure you meet all the other non-size related demands that they have.  Be sure to discuss your goals and concerns with your board certified plastic surgeon and consider the pros and the cons. Be certain your surgeon is properly certified.  I've attached a link where you can start your search.  

A breast reduction can certainly be performed. I will say that is can be difficult to make extremely large breasts very small without compromising shape and possible blood supply to the tissues that remain.

The perception of cup size is different from person to person and you need to look through examples of surgery with your PS to determine what you mean by a B cup. There are pros and cons of larger reductions and best to run through these with your PS.

It is certainly possible to go smaller. The problem is that the procedure becomes technically more difficult the smaller you go because it can be more difficult to keep the nipple alive with a reliable blood supply. This is particularly true of the inferior pedicle technique. And so, some surgeons prefer to keep the breast larger for simplicity, speed, and safety. From my experience, it is very rare to make someone  smaller than they would like, but it is very common for patients to complain of being left too large. 

Yes, breast reductions can take you smaller than a Full C/D cup. The surgeon may have suggested a size based on your body frame, size of your shoulders, planned weight loss if needed etc. I would look at some photos to assist in showing the surgeon what your desired size outcome is.