Flange Size Matters (More Than You Think!)
Here’s a secret many new moms don’t learn until it hurts (literally): flange size can make or break your pumping journey.
Let’s dive into why getting the right fit is everything.
Why Flange Fit Matters
An incorrect flange can:
Cause nipple pain, swelling, or even tissue damage.
Lead to clogged ducts or mastitis.
Slow down milk removal and decrease supply.
Signs Your Flange Doesn’t Fit
❌ Nipple rubs the tunnel.
❌ Areola gets sucked in.
❌ Skin turns white during pumping.
❌ Breasts still feel full after 20 minutes.
❌ Pumping takes forever with little output.
How to Measure Correctly
Wait at least an hour after nursing/pumping.
Stimulate nipple (light roll or cold cloth) so it stands firm.
Measure nipple base in millimeters (not the areola).
Add 0–2mm depending on elasticity.
Compare with pump manufacturer’s guide.
💡 Pro tip: Nipples aren’t twins — measure each separately!
Extra Considerations
Most pumps come with 24–25mm flanges, but that size fits only a fraction of people.
Elastic nipples? You might need specialty inserts to prevent overstretching.
Nipple sizes change postpartum — remeasure anytime you notice pain or supply dips.
Bottom Line
The right flange equals comfort + efficient milk removal. Need more help? Visit YouTube where Mama Nurse Tina shares flange-sizing guides, videos, and resources.
