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Is it safe? · Pregnancy Smart

Breastfeeding with flat or inverted nipples

Assigned clinical reviewerMichael Yuzefovich· MD, FACOGDraft · pending clinical reviewUpdated

What does the evidence say about breastfeeding with flat or inverted nipples?

  1. Nipples may naturally be flat or inverted, and swelling can also flatten them temporarily. These situations should be assessed rather than assumed to be identical. The infant’s ability to latch and transfer milk matters more than nipple appearance alone. 1
  2. A deep latch includes breast tissue rather than pulling only on the nipple. Comfortable positioning and support for the baby’s head and shoulders can help. Persistent pinching, a compressed nipple afterward, or difficulty staying attached deserves an observed feeding assessment. 2
  3. Feeding adequacy is assessed through swallowing, urine and stool patterns, and weight trends. Do not wait for nipple shape to change if the baby is not receiving enough milk. Expressed milk or another feeding plan may be needed while the latch is addressed. 3
  4. A 2026 randomized trial in mothers with nipple abnormalities found some early exclusive-breastfeeding benefit from shields, but no overall advantage at six months. It lacked post-discharge infant growth data. The study supports a targeted discussion, not routine shield use for every flat or inverted nipple. 4
  5. If expression is part of the plan, the flange should fit comfortably without pinching or pulling tissue painfully. A lactation professional can help assess fit and technique. Maximum suction is not a required response to difficulty latching. 5

Questions to discuss with your care team

Decision pointWhat to clarify
Appearance and swellingClarify longstanding inversion versus a temporary postpartum change
Observed latchComfort, depth, and swallowing during an actual feed
Short-term feeding supportMaintain adequate infant intake while skills and positioning are addressed
Devices and follow-upUse any shield or pump with individualized guidance and reassessment

Frequently asked questions

Can a baby breastfeed with inverted nipples?

It can be possible because the baby latches onto breast tissue as well as the nipple. Individual anatomy and feeding skills differ, so an observed feed is more useful than a prediction based on appearance alone.

Can nipples become temporarily flatter after birth?

Yes. Engorgement or swelling can change their appearance. Ask for assessment of the breast and the feeding pattern rather than assuming a new change means a permanent inability to nurse.

Should breastfeeding hurt while the baby learns?

Persistent pinching or pain is a reason to adjust the latch and get help. A deep latch should feel comfortable. Do not keep repeating painful attempts in the hope that tissue simply needs to toughen.

How can I tell whether milk is transferring?

Look and listen for swallowing and review diapers and weight with the pediatric team. Nipple shape alone cannot confirm or exclude effective feeding. Low intake needs a plan while latch support continues.

Does every flat nipple need a nipple shield?

No. Research supports considering shields for selected barriers with follow-up, not automatic use for everyone. The clinician or lactation professional should assess the fit, feeding response, and ongoing need.

Does a shield guarantee breastfeeding success months later?

No. In the cited 2026 trial, early differences did not translate into an overall exclusive-breastfeeding advantage at six months. The study also did not provide post-discharge growth data, so monitoring infant intake remains necessary.

Should I use strong suction to pull the nipple out?

Do not use painful suction. Follow device instructions and ask a lactation professional to review any equipment proposed for your situation. Irritation or injury is a reason to stop and reassess.

What if the baby is not getting enough while we work on latch?

Contact the pediatric and lactation team promptly for a nutrition plan and follow-up. Support for direct breastfeeding should happen alongside adequate milk intake, not at the expense of it.

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References

  1. Common breastfeeding challenges

    HHS Office on Women's Health · https://womenshealth.gov/breastfeeding/breastfeeding-challenges/common-breastfeeding-challenges

  2. Getting a good latch

    HHS Office on Women's Health · https://womenshealth.gov/breastfeeding/learning-breastfeed/getting-good-latch

  3. Newborn Breastfeeding Basics

    CDC · https://www.cdc.gov/infant-toddler-nutrition/breastfeeding/newborn-basics.html

  5. Using a Breast Pump

    FDA · https://www.fda.gov/medical-devices/breast-pumps/using-breast-pump

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.