What to do if your breast pump flange is too large

If you suspect your breast pump flange is too large, you're likely dealing with some pretty annoying discomfort or noticing that your milk supply isn't quite where it should be. It's one of those things nobody really tells you about in those "preparing for baby" classes. You get your pump, you see the standard parts it came with, and you assume they'll work for everyone. But the truth is, the "standard" sizes included in most pump boxes are actually way too big for a huge percentage of people. ...

February 10, 2026 · 7 min · Gemma/jason Reicherter