Babies refuse to latch for a range of reasons, from physical restrictions in their mouth to the shape and firmness of your breast tissue, and sometimes just the way they’re being held. The good news is that most latch problems are solvable once you identify what’s getting in the way. Here’s a breakdown of the most common causes and what you can do about each one.
Tongue-Tie and Mouth Restrictions
One of the most common physical reasons a baby can’t latch is a tongue-tie, where the strip of tissue connecting the tongue to the floor of the mouth is too short or too tight. This restricts the tongue’s range of motion, and since latching requires the tongue to extend over the lower gum and cup the breast, a tied tongue simply can’t do its job. You might notice your baby’s tongue looks heart-shaped or has a visible notch at the tip. During feeding attempts, they may cry, make clicking sounds, or pop off the breast repeatedly.
Tongue-tie affects roughly 4 to 11 percent of infants, with the wide range partly due to how broadly or narrowly it’s defined. If your baby has one, a simple in-office procedure can release the tissue and often improves latching quickly.
You may have also heard about lip-ties, where the tissue connecting the upper lip to the gum is unusually tight. While this sounds like it would cause similar problems, current research doesn’t show that releasing a lip-tie improves milk transfer or reduces nipple pain. It’s worth having your baby assessed, but a lip-tie alone is unlikely to be the culprit.
Engorgement Makes the Breast Too Firm
In the first few days after birth, your breasts can become so full and swollen that the nipple and the darker area around it (the areola) get stretched flat. Latching requires your baby to take a big mouthful of breast tissue, not just the nipple. When engorgement flattens everything out, there’s nothing for your baby to grab onto. The breast essentially becomes a hard, slippery surface.
Fluid buildup in the breast tissue during the early postpartum period can make this even worse. Hand-expressing or pumping just enough milk to soften the areola before a feeding session often makes latching possible again. You’re not trying to empty the breast, just to create enough give that your baby’s mouth can shape around the tissue. A technique called reverse pressure softening, where you press gently around the base of the nipple for a minute or two, can also push fluid back and restore flexibility.
Flat or Inverted Nipples
If your nipples sit flat against the areola or pull inward, your baby may struggle to draw them into the right position for feeding. This doesn’t mean breastfeeding is impossible. Many babies figure it out with a little time and the right approach.
Using a breast pump or hand expression to draw the nipple outward just before latching can help. Nipple eversion devices are also available, though results vary. A nipple shield, a thin silicone cover placed over the nipple, can give your baby something to grab onto while they learn. Nipple shields work best when fitted properly with the help of a lactation consultant, since the wrong size can create new problems.
Torticollis and Neck Tightness
Breastfeeding requires coordinated movement of the head, neck, and jaw. If your baby has torticollis, a condition where the muscles on one side of the neck are tighter than the other, they may strongly prefer turning their head in one direction. This often shows up as difficulty latching on one breast but not the other, fussiness or pulling off during feeds, or shorter feeding sessions where your baby seems to tire out early.
Torticollis can develop from positioning in the womb, pressure during delivery, or general muscle tightness after birth. The discomfort of turning the “wrong” way makes it hard for your baby to maintain a deep latch, which leads to less milk transfer and more frustration for both of you. Physical therapy with gentle stretching exercises is the standard treatment, and most babies improve significantly within a few weeks.
Overactive Let-Down Reflex
Sometimes your baby latches just fine initially but then pulls off, arches their back, coughs, chokes, or cries. This pattern often points to an overactive let-down, where milk releases too forcefully for your baby to manage. Each feeding feels like a struggle, and your baby may start clamping down on the nipple to slow the flow or refusing the breast altogether because they’ve learned to associate it with discomfort.
Feeding in a laid-back or reclined position helps because gravity works against the flow instead of with it. You can also try unlatching your baby when you feel the let-down start, catching the initial spray in a towel, and relatching once the flow slows. Over time, most babies learn to handle a faster flow, and your supply often regulates to better match demand.
Bottle Preference
If your baby has been taking bottles, whether of formula or pumped milk, they may resist the breast because bottles are simply easier. Bottle-feeding requires less coordination. The flow starts immediately instead of requiring a wait for let-down, and the delivery is more consistent. Your baby may figure out quickly that they prefer the path of least resistance.
This doesn’t mean you can’t transition back to the breast. Paced bottle feeding, where you hold the bottle more horizontally and take breaks to mimic the rhythm of breastfeeding, can reduce the contrast between the two. Offering the breast when your baby is calm and slightly hungry (not starving) also increases the chances of a successful latch. Skin-to-skin contact before feeding helps trigger your baby’s natural rooting instincts.
Jaundice and Sleepiness
Babies with jaundice, a common condition in the first week of life where a yellowish substance builds up in the blood, often become unusually sleepy. That sleepiness makes them latch less enthusiastically or fall asleep before they’ve eaten enough. The frustrating part is that not eating enough actually makes jaundice worse, since frequent feeding helps flush the excess substance out through stool.
If your baby is jaundiced and hard to rouse, waking them every two to three hours to feed is important. Undressing them to their diaper, tickling their feet, or switching breasts mid-feed to re-engage their attention can help keep them awake long enough to get a full feeding.
Positioning That Works With Gravity
The way you hold your baby has a surprisingly large effect on latching. The laid-back position, where you recline comfortably (not flat) with your baby lying tummy-down on your chest in skin-to-skin contact, uses gravity to keep your baby close and stable. Your baby can smell your skin, feel your heartbeat, and follow their natural instincts to root and latch. This position is especially helpful if your baby seems stressed during feeding, if their arms keep getting in the way, or if you’ve been struggling to find a comfortable hold.
To try it, lean back on a couch or in a recliner so you’re well supported. Place your baby on your chest with their head near your breast. You don’t need to line everything up perfectly. Babies in this position often find the breast on their own. Raising your feet and angling your lap slightly upward helps keep your baby from sliding.
The football hold, where your baby is tucked under your arm along your side, is another good option. It gives you a clear view of your baby’s mouth approaching the breast, making it easier to see whether the latch looks deep enough. This hold is also practical after a cesarean delivery since it keeps your baby’s weight off the incision.
Signs Your Baby Isn’t Getting Enough Milk
While you’re working through latch issues, it helps to know what to watch for. By six days old, a baby who’s eating enough should produce at least six wet diapers per day. After a feeding session, a baby who didn’t get enough milk may be fussy, cry, bob their head around searching for the breast, or stay unusually alert instead of settling into the drowsy satisfaction you’d expect.
Pain is also a signal. If latching makes you flinch or wince every time, and that pain isn’t improving over the first couple of weeks, the latch likely isn’t deep enough. A shallow latch causes nipple damage, transfers less milk, and can gradually reduce your supply over time. Your baby’s growth pattern, tracked at regular pediatric visits, is the most reliable indicator of whether they’re getting what they need.
Getting Hands-On Help
Latch problems are one of those things that are much easier to solve with someone watching in real time. A lactation consultant can observe a feeding, check your baby’s mouth for ties or restrictions, assess your positioning, and make adjustments that are hard to figure out from articles or videos alone. Many hospitals have lactation support available before discharge, and outpatient visits are covered by many insurance plans. La Leche League and similar organizations also offer free peer support groups where you can get help from experienced breastfeeding parents.