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Why Breast Pump Flange Sizes Matter: A Brief Guide for Breastfeeding Moms

For some moms, nursing on-demand at the breast is all you and your baby will need. For others, a breast pump will become an occasional or regular component of your breastfeeding routine. One often-overlooked factor that can significantly affect your pumping experience is the size of the breast pump flange. In this blog post, we will explore why breast pump flange sizes matter and how choosing the right size can make a world of difference for breastfeeding mothers.

What Are Breast Pump Flanges?


Breast pump flanges, also known as breast shields, are the funnel-shaped components of a breast pump that fit over your breast. They create a seal around the nipple and areola, allowing the pump to extract milk from your breast. Flanges come in various sizes, typically measured in millimeters, to accommodate different breast shapes and sizes.


Why Do Flange Sizes Matter?

  1. Comfort and Efficiency: Choosing the correct flange size is crucial for comfort and efficiency during pumping sessions. If the flange is too small, it can compress the breast tissue, causing discomfort, friction, and even nipple pain. On the other hand, if the flange is too large, it may not create a proper seal, resulting in reduced milk extraction and potentially leading to a longer pumping session.

  2. Protecting Your Nipples: Nipple health is a top priority for breastfeeding mothers. Ill-fitting flanges can lead to friction, chafing, and even nipple damage. When the flange fits correctly, it allows your nipple to move freely within the tunnel without rubbing against the sides, reducing the risk of soreness and cracked nipples.

  3. Maximizing Milk Output: Efficient milk removal is essential for maintaining a healthy milk supply. An improperly sized flange can hinder milk flow and, over time, decrease milk production. When the flange fits correctly, it promotes better milk drainage, stimulating your body to produce more milk and ensuring that your baby receives an adequate supply.

How to Find the Right Flange Size

  1. Measure Your Nipple Diameter: To determine your correct flange size, measure your nipple diameter when it is at its fullest, typically during a pumping session. You can use a ruler or a specialized measuring tool designed for this purpose. Remember that nipple size can change over time, so it's essential to reevaluate periodically.

  2. Consult an IBCLC: Lactation consultants are experts in breastfeeding and pumping. They can assess your flange size and provide personalized guidance to ensure you are using the correct size for your comfort and milk production goals.

  3. Test Different Sizes: Many breast pump manufacturers offer flange sizing kits, which include multiple flange sizes for you to try. Experiment with different sizes to see which one feels most comfortable and results in the highest milk output. It's a trial-and-error process, but it's worth the effort to find the perfect fit.

Conclusion


Breast pump flange sizes may seem like a minor detail in your breastfeeding journey, but they play a significant role in your comfort, milk output, and overall pumping experience. Ensuring that you use the correct flange size can make a world of difference, promoting comfort, protecting your nipples, and maximizing milk production. Don't hesitate to seek help from a lactation consultant if you're unsure about your flange size, as their expertise can be invaluable in achieving a successful and enjoyable breastfeeding and pumping experience.


Interested in booking a virtual flange fitting appointment with an IBCLC? Call or e-mail today to book your fitting!


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