It’s so hard to say cause it’s different on each person. I’m a size 4/6 and wanted to be d/dd. My surgeon suggested 250cc, as my ribcage is only 20cm. I was horrified as it sounded tiny, I’m now 6 days po and measuring a d. But I had unders so still yet to drop and fluff, so imagine I will be a dd ? consultations are free so id definitely say go for one as the surgeons really do know what’s best to advice you for your desired size.
I would say though a very popular size inplants tends to be 350/375cc
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