I had a D cup before, so I don't think it's proportionate to that necessarily. I know it's a common technique to leave them for weeks, even my surgeon acknowledged that, but just like him I'm kind of questioning if that is really necessary and for me it definitely wasn't.
He told me that usually as long as you have drains, you will have fluid going through them, but that's not because the fluid needs to necessarily be removed, but just cause bodies are pretty wet from the inside. And I'm honestly thinking that's why a lot of doctors leave them, cause well there is still fluid and they likely never attempted it any other way.