EN
1. Understanding Medela's Breast Shield Sizing
Pumping should not hurt. For maximum comfort and pumping
efficiency, Medela offers multiple breast shields; PersonalFit
is available in 21 mm, 24 mm, 27 mm, 30 mm, 36 mm and
PersonalFit Flex is available in 21 mm, 24 mm, 27 mm, 30 mm.
This guide is a starting point to help determine your optimal size
based on your nipple diameter.
Step 1:
Using a ruler or measuring
tape, measure the diameter
Nipple Base
of your nipple at base (across
Nipple
middle) in millimeters (mm).*
1 cm = 10 mm.
Measure
Do not include areola.
Areola
Step 2:
Based on your measurement, determine your breast shield size.
36
*
30
27
24
mm
21
mm
mm
mm
mm
Up to 17 mm
Up to 20 mm
Up to 23 mm
Up to 26 mm
Up to 32 mm
*36 mm is not available in the PersonalFit Flex breast shield
Example: If your nipple size measures 16 mm in diameter, the recommended
breast shield size is 21 mm.