Many new mothers struggle to figure out if their breast pump flanges fit correctly.

Knowing the signs of a good fit and spotting common sizing issues can make pumping more comfortable and efficient.

This guide will help you check if your flanges are the right size and share tips for getting the best fit.

Let’s dive in!

A properly fitting flange ensures comfort and efficiency during pumping. Here are some key indicators that your flange fits correctly:

• Nipple Movement: Your nipple should move freely in the flange’s tunnel without rubbing against the sides. It should be centered and able to move in and out during pumping.
• Areola Comfort: Only a tiny portion of the areola (the darker area around the nipple) should be drawn into the tunnel. If too much or none of the areola is pulled in, the flange may not be the correct size.
• Suction Comfort: You should feel a gentle tugging sensation, not pain or pinching. Discomfort during pumping can signal an incorrect flange size.
• Milk Flow: A good fit often leads to better milk output. If you notice minimal milk flow despite adequate suction, a flange size issue might be the cause.

By paying attention to these signs, you can identify whether your flange is a good fit or if adjustments are needed.

Using breast pump flanges that do not fit properly can lead to discomfort and reduced milk production. Here are some common signs that your flange size might be incorrect: 

• Nipple Pain or Damage: If your nipple feels pinched or sore after pumping or shows signs of redness or cracking, the flange may be too small or too large. 
• Areola Pulling: Excessive or no areola being drawn into the tunnel could indicate an improper fit, which can result in reduced efficiency and discomfort. 
• Reduced Milk Output: An ill-fitting flange can hinder milk flow, causing less milk to be expressed during pumping sessions, even if the suction feels strong. 
• Swelling or Blanching: Swelling or whitening of the nipple during or after pumping is a sign that the flange is either too small or applying uneven pressure. 
• General Discomfort: Pumping should not feel painful or overly uncomfortable. Persistent discomfort may indicate that you are using the wrong size. 

Recognizing these signs can help you determine when it’s time to resize your flanges for a more comfortable and practical pumping experience.

If the flange is too big, your nipples may look swollen or stretched after pumping. A larger flange can pull too much of the areola into the tunnel, leading to excessive nipple and areola movement.

This can cause discomfort, redness, or irritation around the nipple area. You might also notice that the nipple appears elongated or distorted after pumping.

Additionally, using a flange that is too large can reduce suction efficiency, potentially leading to issues with milk output and leaving you feeling engorged.

If you observe these signs, it may be time to reassess your flange size and consider trying a smaller option.

No, your nipples should not touch the flange walls during pumping. If they do, friction and discomfort can result as the nipple moves against the hard plastic. This can also damage the delicate skin of the nipple and result in pain or soreness post-pumping.

If you find that your nipples are touching the sides of the flange, try a size with a larger circumference to allow for more space between your nipple and the walls.

In final words, you can know if your breast pump flanges fit by paying attention to signs such as nipple movement, areola comfort, suction sensation, and milk flow.

If you experience any discomfort or reduced milk output during pumping, it may be time to reassess your flange size and make adjustments for a better fit.

Remember, properly fitting flanges can make all the difference in your breastfeeding journey and help you easily achieve your pumping goals.