Correct selection of the appropriate breast shield size can allow mothers to feel comfortable and pain-free when sucking breast milk with the breast pump, and at the same time give full play to the best effect of the breast pump. If you experience discomfort, pain, or breast tenderness when breastfeeding. The speaker size you have chosen may be too small or too large.
A breast shield that is too small or too large can cause:
- Milk blister or bleb
- Low breast milk expression
- Redness of the nipple
- Nipple turning white
- Ring around nipple
- Plugged ducts base
Accurate measurement of your nipple diameter is the essential first step in determining the appropriate size for your breast shields. Utilize the Spectra breast shield sizing guide card, ruler, or tape measure to identify the correct size.
To learn how to measure the nipple diameter properly and select the right size for your breast shields, check out the tutorial video below:
Tips: Since the nipples on the left and right sides may differ in size, it is advisable to measure each nipple's diameter separately. This will help you accurately choose the right breast shield size. Additionally, your breast shield size may change after your breast milk supply becomes sufficient, probably around the 10th week postpartum.
At that time, it is recommended that you re-measure your nipple diameter and add approximately 4 mm to the nipple diameter as shown below to find the breast shield size that suits you. The following guidelines can be used as a reference for breastfeeding mothers. Actual situations may vary from person to person.