E87: Flange Fitting Fundamentals

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A well-fitted breast pump flange is crucial for comfort, breast tissue protection, and maximum milk supply. The flange—the part of the pump that covers the areola and nipple—should be sized to match your exact nipple diameter measurement, not 2-4mm larger as previously recommended.

• Pumps don't actually pump milk; they create suction that pulls milk from the nipple
• Most pumps come with standard 24-28mm flanges, but many women need much smaller sizes (16-18mm range)
• Measure your nipple diameter (not areola) using the measuring tools that come with your pump
• Get flanges that match your exact nipple measurement for best results
• Silicone inserts can help adjust flange size and are more comfortable than hard plastic
• During pumping, your nipple should stay at the base of the tunnel without excessive areola movement
• Each breast may need different sized flanges
• A properly fitted flange can increase milk output, improve comfort, and reduce risk of clogged ducts
• Nipple elasticity may change over time, requiring flange size adjustments

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Show Credits

Host: Angie Rosier 
Music: Michael Hicks 
Photographer: Toni Walker
Episode Artwork: Nick Greenwood 
Producer: Gillian Rosier Frampton
Voiceover: Ryan Parker