A larger flange decreases the pressures at the breast proportional to 
the increased area in the nipple tunnel. She may need to double pump 
until the breast using the smaller pump is comfortable, and then turn up 
the pump and single pump the breast requiring the larger flange. It's 
just physics.

Sometimes using a Pumpin Pals flange can help find a better balance 
between nipple tunnel diameter and pressure, they have a larger variety 
of sizes.

Catherine Watson Genna BS, IBCLC  NYC  www.cwgenna.com

On 7/31/2018 8:56 AM, Theresa Moutafis wrote:
> Yep, she is using different flanges - the problem is that she can't get the
> suction to work with the flange size needed for the left breast. She
> understands the difference in output, it's the fact that if she uses a
> different flange, she either gets too much or too little suction in the
> "lagging" breast, if that makes sense.
>
> On Tue, Jul 31, 2018 at 8:44 AM Patricia Young <[log in to unmask]>
> wrote:
>
>>   Not unusual for breasts to be different sizes and have different
>> outputs.  Use best flange for each breast.  They do not need to be matching
>> flanges!  Pat in SNJ
>>
>>
>>
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