Understanding 13 mm Flange Size for Comfortable, Efficient Pumping

Understanding Flange Size for Pumping Moms

For breastfeeding and pumping moms alike, finding the right flange size is crucial for comfort and maximizing milk production. But with all the options out there, how do you know what size flange is right for you? One common choice is 13 mm flanges.

What Is a Flange?

A flange is the tunnel-shaped part of a breast pump that attaches to your breast with a breast shield to extract milk. The flange size, measured across the diameter of the tunnel, must match closely to the diameter of your nipples and areolas for efficient pumping and to avoid discomfort.

Who Might Use 13 mm Flanges

Generally, moms with smaller breasts and nipples do best with smaller flange sizes like 13 mm. This includes moms:

• With smaller areola diameters (less than 16 mm across)
• Who are petite or have smaller frames
• With flat or inverted nipples

However, flange sizing should be based on your individual anatomy, regardless of breast size. Even if you have larger breasts, you may still need a 13 mm flange if you have small or flat nipples.

Benefits of 13 mm Flanges

There are a few key reasons why a 13 mm flange is an appropriate choice for many exclusively pumping moms:

• The snug fit is more comfortable if you have small or flat nipples.
• Creates a tight seal and suction for efficient milk extraction.
• May reduce rubbing or friction that leads to irritation or injuries.
• Works well with standard neck sized milk collection bottles.

Potential Drawbacks

While 13 mm can be an ideal flange diameter for many women, there are also some drawbacks to consider:

• May not allow enough breast tissue into the tunnel if breasts do not fit well into the opening.
• Ongoing pain or discomfort could signal it is too small.
• May contribute to clogged ducts if too small for your anatomy.

How to Determine Your Perfect Flange Fit

Rather than guessing at size based on standard recommendations, the best way to determine your ideal flange diameter is to evaluate the fit yourself. Here are some tips:

Check If Your Nipple Fits Comfortably

When positioned correctly, your nipple and a small amount of areola should comfortably slide into the tunnel. If the flange opening squishes or rubs your tissues, it is likely too small. If there is a large gap, it may be too big.

Consider Comfort Over Time

A flange may feel okay at first but cause irritation or pain over repeated use. Pay attention to signals of discomfort as you pump to determine if a size change is needed.

Watch for Physical Reactions

Friction blisters, soreness, or cracked/bleeding skin are signs the openings may be too small. Red indentation lines or swollen areas can also indicate improper fit.

Check Your Pump Suction

If you don't get a good seal or suction drops quickly, the fit is likely too large. Size down for better vacuum suction. Loose connections with a proper fit will have strong suction.

Evaluate Your Milk Output

Sudden drops or fluctuations in milk volume when pumping may also indicate you need a different size. Output should be consistent once supply is established.

Tips For Finding Your Perfect Size

It can take some trial and error with testing out differnt flange sizes to determine which is best for you. Here are some extra tips to help the process:

• Measure your nipples across the base to estimate your starting size.
• Try on multiple sizes and brands to compare fit.
• Use insert cushions to adjust fit if needed.
• Ask a lactation consultant to assess shape and make recommendations.
• Monitor for symptoms of improper fit and make changes accordingly.

Work With a 13 mm Flange

Based on your nipple anatomy and pumping feedback, a 13 mm flange may be the ideal size for you. Allow your breasts to guide you to the best flange diameter for both production and comfort. With the right fit, pumping will be painless and efficient.

FAQs

What nipples are 13 mm flanges designed for?

13 mm flanges are best suited for mothers with smaller or flat nipples. They create a snug fit for nipple diameters of 13 mm or less.

Do I need new flanges with every baby?

Possibly. Hormonal changes and breast shape from previous breastfeeding can change your nipple diameter. Always reassess flange sizing with each child.

Can I combine flange sizes on each breast?

Yes. You may find your nipples and breast shape differ slightly side to side. Using two sizes to suit each breast can improve comfort.

How do I measure my nipples?

Use calipers or a ruler to carefully measure across the nipple diameter at its base, where it meets the areola. Compare to flange opening sizes.

Should flanges hurt at first?

No, flanges should never cause ongoing pain, even during the initial adjustment period. Discomfort is a sign of improper fit needing correction.