No two nipples are the same.
Simple, expert-backed baby and toddler care guides to support your instincts, build your confidence, and help you go from “how-to” to everyday parenting know-how, one moment at a time.
Finding your fit isn't an exact science.
Try starting with the horn or insert size closest to your nipple measurement. And consider trying the next size up or down, too. Your pump shouldn't pinch, rub or cause any discomfort.
You've found your ‘sweet spot’ when you experience the most comfortable and consistent breast milk flow.
How to measure:
- Roll your nipple between your thumb and finger or put something cool on it to make sure it's full size.
- Use the included guide to measure the base of your nipple in millimeters.
- Only measure your nipple on its own, don't include your areola.
- Once you've measured one nipple, repeat the process with the other.
- Then, choose the horn insert that's closest to your nipple size.
Too small:
Your nipple rubs against the tunnel and none of your areola is pulled in.
Too big:
More of your areola is sucked into the horn and may rub against the edge of the tunnel.
Just right:
Your whole nipple fits comfortably without much (if any) of your areola entering the tunnel before you pump. While you express, only a little bit of your areola is pulled into the tunnel.
A flow that feels natural.
Experiment with your electric pump's settings to choose the right ones for you. Start low and work your way up a level each time, if the pace or pull of the suction is too intense, dial it back. What feels right for you can change from one session to the next.
By switching modes and adjusting suction levels, you can create a pattern that works best for your body.
Helpful reads & advice
Is your baby is getting enough breast milk? Learn about feeding cues, nappy output, weight gain, and when to seek extra support.
Too soon, too late — timing your first express can feel complicated. Here's a clear guide to when and how to start expressing, and what to expect when you do.
Struggling with traditional expressing? Discover how to pump comfortably with a wearable breast pump. Read online with Tommee Tippee.
