Nipple Sizing Guide - How to Measure for the Perfect Fit

Getting the right nipple shield size is crucial for comfortable and effective pumping. Here's your step-by-step guide to finding your perfect fit.

What You'll Need

  • A ruler or measuring tape (millimeters preferred) - or try our measuring card for easier sizing
  • A mirror for better visibility
  • Good lighting

Step-by-Step Measuring Instructions

1. Measure Your Nipple Diameter - Measure across the base of your nipple (not the areola) at its widest point. This should be done when your nipple is at rest, not erect.

2. Add 2-4mm for Comfort - Your nipple shield should be 2-4mm larger than your nipple diameter to allow for comfortable movement and prevent friction.

Size Chart - Nipple Diameter & Recommended Shield Size
15-17mm - 19-21mm shield
18-20mm - 22-24mm shield
21-23mm - 25-27mm shield
24-26mm - 28-30mm shield

Signs You Have the Right Size

  • Your nipple moves freely in the tunnel
  • No pain or discomfort during pumping
  • Effective milk expression
  • No white ring around your nipple after pumping

Signs Your Shield is Too Small

  • Nipple rubs against the sides
  • Pain during pumping
  • White ring around nipple after use
  • Reduced milk output

Signs Your Shield is Too Large

  • Areola is pulled into the tunnel
  • Reduced suction effectiveness
  • Discomfort from too much tissue being drawn in

Need Help? - If you're unsure about your size or experiencing discomfort, consider consulting with a lactation consultant. They can help ensure you get the perfect fit for your pumping journey.
Remember: Your nipple size may change throughout your breastfeeding journey, so don't hesitate to remeasure if you experience discomfort.