How to Measure What Size Flange for Breast Pump

Choosing the right flange size for your breast pump is crucial for comfort, efficiency, and maintaining your milk supply. Many women overlook this step, but an ill-fitting flange can lead to discomfort, reduced milk output, and even damage to breast tissue. In this guide, we’ll walk you through the process of measuring your nipple size to determine the perfect flange fit.

Why Flange Size Matters

The flange, also known as the breast shield, is the part of the breast pump that fits over your nipple and areola. Its primary function is to create a seal that allows the pump to express milk effectively. If the flange is too small, it can compress your nipple, causing pain and restricting milk flow. If it’s too large, it can pull in too much of the areola, leading to discomfort and inefficient pumping. Finding the right size ensures a comfortable and productive pumping experience.

Step-by-Step Guide to Measuring Your Flange Size

Step 1: Gather Your Tools

Before you begin, make sure you have a flexible measuring tape or a ruler. You’ll also need a mirror to help you see your nipple clearly during the measurement process.

Step 2: Measure Your Nipple Diameter

Start by measuring the diameter of your nipple. To do this, place the measuring tape or ruler across the base of your nipple, where it meets the areola. Measure the width in millimeters. Make sure to measure your nipple when it’s in a natural, non-erect state, as this will give you the most accurate reading.

Step 3: Add 2-3 Millimeters

Once you have your nipple diameter, add 2-3 millimeters to this measurement. This additional space ensures that your nipple has enough room to move freely within the flange without being compressed. For example, if your nipple measures 18 millimeters, you’ll want to look for a flange that’s around 20-21 millimeters in size.

Step 4: Test the Fit

After determining your ideal flange size, it’s time to test the fit. Place the flange over your nipple and turn on the breast pump. Your nipple should move freely within the tunnel of the flange without rubbing against the sides. If you feel any discomfort or notice that your nipple is being compressed, you may need to try a larger size. Conversely, if too much of your areola is being pulled into the flange, you may need a smaller size.

Common Mistakes to Avoid

Mistake 1: Guessing Your Size

One of the most common mistakes women make is guessing their flange size based on how it looks or feels. This can lead to an improper fit and a less effective pumping experience. Always measure your nipple diameter to ensure accuracy.

Mistake 2: Using the Default Flange Size

Many breast pumps come with a standard flange size, but this may not be the right fit for everyone. Don’t assume that the default size will work for you. Take the time to measure and find the size that’s best for your body.

Mistake 3: Ignoring Discomfort

If you experience pain or discomfort while pumping, it’s a sign that your flange may not be the right size. Don’t ignore these symptoms, as they can lead to more serious issues like nipple damage or a decrease in milk supply. Always prioritize your comfort and make adjustments as needed.

Tips for a Comfortable Pumping Experience

Tip 1: Use Lubrication

Applying a small amount of lubrication to the flange can reduce friction and make pumping more comfortable. Be sure to use a product that’s safe for both you and your baby.

Tip 2: Take Breaks

If you’re pumping for an extended period, take short breaks to give your nipples a rest. This can help prevent soreness and discomfort.

Tip 3: Stay Hydrated

Staying hydrated is essential for maintaining your milk supply. Drink plenty of water throughout the day, especially before and after pumping sessions.

When to Seek Professional Help

If you’ve tried measuring your flange size and still experience discomfort or difficulty pumping, it may be time to seek professional help. A lactation consultant can provide personalized advice and help you find the right flange size for your needs. They can also offer tips on improving your pumping technique and increasing your milk supply.

Finding the right flange size for your breast pump is a simple yet crucial step in ensuring a comfortable and efficient pumping experience. By following the steps outlined in this guide, you can avoid common mistakes and enjoy a more productive pumping journey. Remember, your comfort and well-being are just as important as your baby’s nutrition, so take the time to measure and find the perfect fit.