Things You Must Know Before a Boob Job

Mr Jonathan Staiano
By Mr Jonathan Staiano

Jonathan Staiano is not only one of the leading Consultant plastic surgeons in the UK and specialises in breast plastic surgery.


When talking to patients considering breast surgery, I always ask what bra cup size they would like to achieve – some patients have a very clear view ‘I’d like to be a DD and nothing else will do!’, while others are not so specific ‘I’d like to look natural, be comfortable and in keeping with my frame’.

I always ask the question because cup size is the way that we talk about breast size but I then always say that I cannot guarantee the final cup size. 

The bra size is made up of two measurements, there is the chest size, 32, 34, etc., and the cup size, A, B, C, etc. 

The chest size should not change following breast surgery (there may be a temporary increase due to swelling) and it is the cup size that is likely to be affected. 

However, the precise change in the cup size is difficult to predict for several reasons:

Breast augmentation treatment
  • Bra size is relative. The bra size is measured by measuring the circumference of your chest (this is the chest size), then the circumference around your bust. The difference between the chest circumference and the circumference around your bust gives the cup size. The 1-inch difference is an A cup, 2 inches is a B cup, 3 inches a C cup and so on. Because the cup size is the difference between your chest and your bust circumference, it is not an absolute measurement, an A cup will be different for a person with a wide chest compared to someone with a narrow chest. Therefore, I cannot show you a photograph of a pair of breasts and tell you the cup size, because the same sized breasts on you may be a different cup size if your chest circumference is different to the person in the photograph.
  • Bra size varies between manufacturers. I often have patients tell me that they wear a C cup in one make of bra or a D cup in another make
  • People often wear the wrong bra. Most people could probably fit into one cup size bigger or one cup size smaller than they normally wear if they were to adjust the strap size. It may well be that someone who is a 34D could wear a 36C or a 32DD.

Having said all that, bra size is all we have got to go on, so I always ask what cup size you would like to be. Just don’t be surprised when I say that I can’t guarantee that I will achieve it!

If you want to read more, the experts at Consulting Room really know what they're talking about and have put together Breast Surgery and Breast Augmentation FAQs just for you. 

If you have more questions, you can use the Breast Surgery and Breast Augmentation questions feature to talk to our panel of trained medical experts. 

If you're keen to get started with any of these treatments right away then you're in luck - those clever folks also have a list of trusted, accredited Breast Surgery and Breast Augmentation clinics in your area.

Many thanks to the author of this blog Jonathan Staiano who is not only one of the leading Consultant plastic surgeons in the UK, he is also entirely independent and ethically driven.

Jonathan’s central goal is to ensure your patient journey is a positive one, where the benchmark of success is your satisfaction with the results of the procedure and your entire patient journey, from start to finish.

Jonathan set up Staiano Plastic Surgery in Birmingham in 2008 as he felt there was something missing in inpatient care in other plastic surgery organisations. 

Thanks to the Author

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