How to measure flange size Many of the breast pump manufacturers have sizing guides on their websites to help you find the proper fitting breast pump flange, or as some manufacturers call them, breast shields. The size of the flange you need depends on the diameter of yournippleor the dista...
(If you're using a double pump, do this on both sides.) It's very important that the flange fits correctly so that you get a good seal but it doesn't pinch or irritate your nipples. The flange should fit closely around your nipple but leave a miniscule amount of space for it to ...
Regardless, it’s important to find the right size flange for you, as this will affect your comfort level as well as how much milk you get to extract. According to feeding experts at Medela, you’ll need to re-evaluate your flange size if you find that one or more of the following ...