5 Ways to Measure the Right Breast Pump Flange Size for Maximum Comfort and Milk Flow

Many breastfeeding mothers experience pain or poor milk flow while pumping, and one of the main causes is using a breast pump flange that doesn’t fit their nipple size. The flange serves as the channel that transfers suction from the pump to the breast, and when its size is incorrect, several problems can arise.

If the flange is too small, it can cause nipple pain, chafing, or even injury. Conversely, a flange that’s too large may pull too much of the areola into the tunnel, creating uneven pressure and reducing suction efficiency. As a result, milk flow becomes less optimal.

That’s why it’s essential to know how to measure your breast pump flange size correctly, to ensure a more comfortable, efficient pumping experience while maintaining breast health.

With the right flange size, you can prevent nipple pain and irritation, improve milk flow, support a stable milk supply, and make every pumping session more enjoyable and productive.

Hegen understands that every mother has a unique breast shape and size. That’s why Hegen offers full silicone, flexible flanges in a range of sizes designed to fit each mother gently and precisely.

How to Measure Your Breast Pump Flange Size Correctly

Finding the right flange size is simple, as long as you follow the correct steps. Here’s a quick guide:

1. Prepare a measuring tool. Use a small ruler or a nipple measuring guide (nipple ruler), available at most breastfeeding supply stores.

2. Measure after nursing or pumping. This is when your nipple is at its largest size, providing a more accurate measurement.

3. Measure only the nipple. Focus solely on the nipple’s center diameter, do not include the areola.

4. Record the result in millimeters (mm). This measurement serves as the base for finding your ideal flange size.

5. Add about 2 mm of space on each side. Add a total of 4 mm (2 mm per side) to your nipple diameter for a comfortable fit.

Example: If your nipple measures 18 mm, your ideal flange size would be 22 mm.

Signs Your Breast Pump Flange Size Is Incorrect

Even if a flange feels fine at first, the results during pumping may tell a different story. Look out for these signs:

• Nipple pain, redness, or chafing after pumping

• Poor or inconsistent milk flow

• Areola being pulled too deeply into the flange

• Uncomfortable pressure on the breast

• Red marks or mild swelling around the nipple

If you experience one or more of these symptoms, it’s time to remeasure or try a different flange size. Remember, your left and right breasts may not be the same size, so it’s important to measure both.

Also read: Practical Tips for Choosing the Right Baby Bottle Size for a Comfortable Feeding Experience

The Advantages of Hegen Breast Pump Flanges

Hegen introduces an innovation that truly understands the needs of modern breastfeeding mothers, comfort, practicality, and hygiene in one seamless system. Every detail of the Hegen breast pump flange is designed with thoughtful precision to make each pumping session gentler, safer, and more effective.

Key Advantages of Hegen Breast Pump Flanges:

• Flexible Full-Silicone Design. Crafted from 100% soft, flexible silicone, the Hegen flange naturally adapts to the breast’s shape without pressing against the skin. This ensures maximum comfort during every pumping session.

• Soft and Safe Materials. Made from food-grade silicone that is BPA-free, BPS-free, and toxin-free, Hegen guarantees safety for both mother and baby while maintaining the highest hygiene standards.

• Compatible with the Hegen Express-Store-Feed System. The Hegen flange works seamlessly with the Express-Store-Feed system, allowing you to pump, store, and feed directly from the same container, no milk transfer needed. This smart integration ensures practicality, cleanliness, and minimal risk of contamination.

• Complete Size Range. Every mother’s anatomy is unique. That’s why Hegen offers a wide selection of flange sizes, ensuring the perfect fit for every nipple diameter and promoting optimal milk flow and expression efficiency.

• Ergonomic, Skin-Friendly Design. Thoughtfully shaped to provide gentle, even pressure, the Hegen flange reduces pain, prevents soreness, and supports a more natural milk flow, making every session smoother and more relaxing.

Hegen Flange Size Guide

Each mother’s nipple size varies, and choosing the right one is key to comfort and performance. Here’s a simple guide to help you find your best fit:

Additional Tips

• Measure both nipples, as their sizes may differ slightly.

• Try a few sizes if needed, and choose the one that feels most comfortable during pumping.

• If you’re unsure, consult a lactation expert or use the Hegen size guide available on the official Hegen website.

Hegen, The Best Choice for Breastfeeding Mothers

Beyond its soft and flexible flanges, the entire Hegen system is thoughtfully engineered to provide comfort, efficiency, and hygiene for every breastfeeding mother. At the heart of its innovation is the Hegen PCTO™ (Press-to-Close, Twist-to-Open) technology, a patented design that allows you to seal or open the bottle effortlessly with just one hand, completely spill-free.

The system’s closed and hygienic design keeps breast milk pure and protected from contamination while minimizing waste. With Hegen, you can pump, store, and feed all from the same container, a simple yet revolutionary approach that saves time and preserves the quality of every drop of milk.

Each Hegen bottle is made from medical-grade PPSU (Polyphenylsulfone), a durable material that withstands extreme temperatures ranging from -18°C to 180°C. This ensures the bottles remain crystal-clear, safe, and structurally sound even after repeated sterilization. Meanwhile, Hegen’s silicone teat is designed to mimic the natural shape and feel of a mother’s breast, reducing nipple confusion and making it easier for babies to transition between breastfeeding and bottle-feeding seamlessly.

Also read: How to Use the Hegen Electric Breast Pump: A Safe and Efficient Guide for Breastfeeding Mothers

Understanding how to measure your breast pump flange size correctly is a vital step toward a comfortable, pain-free, and efficient pumping experience. With its soft silicone flanges, wide range of sizes, and innovative Express–Store–Feed system, Hegen empowers every mother to find her own natural rhythm of nurturing, one that’s gentle, effortless, and filled with love.

Measure today and discover your perfect Hegen breast pump flange size at the  Hegen Indonesia Official Website. Experience a more comfortable, hygienic, and natural pumping journey, every single day, with Hegen.

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