It’s 3 a.m., your baby’s squirming, arching, and making that heartbreaking little cry again. You’ve burped, rocked, and tried every “gas relief” trick on TikTok. But you can’t shake the question:
“Is this just gas… or could it be reflux?”
You’re not alone. Gas and reflux can look almost identical in newborns—and knowing which one you’re dealing with changes how you help your baby (and how soon you both get more sleep).
Let’s break it down the Baby Settler way: with clarity, compassion, and zero overcomplication.
First Things First: Why Babies Struggle with Digestion
In the early weeks, your baby’s digestive system is still maturing. The muscles that keep milk down (the lower esophageal sphincter) aren’t fully coordinated yet. Combine that with tiny tummies, lots of air intake, and lying flat most of the time—and you get a recipe for spit-ups, burps, and discomfort.
The key is figuring out which issue is causing your baby’s distress—gas or reflux—so you can respond the right way.
How to Tell If It’s Gas
Gas happens when swallowed air gets trapped in your baby’s belly. It’s common, normal, and fixable.
Typical signs of gas:
- Pulling knees toward the chest or arching during or after feeds
- Grunting or wriggling after swallowing air
- Short, restless sleep between feeds
- Relief after burping or passing gas
Common causes of gas:
- Fast letdown or bottle flow (baby can’t keep up)
- Crying before feeds (swallowing air)
- Shallow latch or leaking at the breast/bottle
- Overstimulation or overtiredness before feeds
What helps:
✨ Burp mid-feed and again at the end. Don’t wait until they finish the whole bottle or breast.
✨ Check bottle flow. Most babies need slower flow than you think. (At Baby Settler, we typically recommend Dr. Brown’s Preemie or Level T early on.)
✨ Feed on cue. Hungry, crying babies gulp air—so catch hunger cues early.
✨ Hold baby upright 10–15 minutes after feeding. Gravity helps bubbles move through.
If your baby calms quickly once gas is released, it’s probably just that—gas.
How to Tell If It’s Reflux
Reflux, on the other hand, happens when stomach contents travel back up the esophagus. Some reflux is normal (that’s why most babies spit up occasionally). It becomes an issue when it causes pain or feeding difficulties.
Possible reflux clues:
- Frequent spit-ups that seem painful (crying or arching right after)
- Pulling off the breast or bottle mid-feed and refusing to go back
- Coughing, gagging, or hiccupping often after feeds
- Poor weight gain despite frequent feeding
- Short, fussy feeding sessions followed by back-arching
What helps:
✨ Feed smaller amounts more frequently so the stomach isn’t too full.
✨ Keep baby upright for at least 15–20 minutes after every feed.
✨ Avoid tight swaddles immediately after feeding.
✨ Check latch and flow rate. Fast flow bottles or strong letdown can worsen reflux by overwhelming the stomach.
✨ If symptoms persist, talk to your pediatrician—they may recommend evaluation or medical management if baby’s in pain or not gaining.
When It’s Both (Yes, That Happens!)
Some babies experience both gas and reflux.
They swallow air (causing gas), then the trapped air increases pressure in the stomach (causing reflux).
The good news? You can usually ease both by focusing on one thing first: efficient feeding.
That’s the foundation of the Baby Settler Method.
When babies feed calmly, comfortably, and completely, their digestion naturally regulates—and everyone sleeps better.
What You Can Do Tonight
If you suspect gas or reflux, try this tonight:
Start with a calm feed. Feed before crying starts to reduce swallowed air.
Pause halfway. Burp and reposition baby.
Keep upright for 15 minutes post-feed (walk, rock, or just hold).
Lay baby flat only once settled—not immediately after feeding.
Track patterns. Note when symptoms happen and after which feeds.
Within a few days, you’ll start seeing trends that point clearly to gas or reflux—and you’ll feel more confident responding.
Still not sure what you’re dealing with?
Reflux and gas overlap enough that even experienced parents can’t always tell them apart — and the strategies for each are different, so guessing costs you time you don’t have.
This is one of the most common reasons families book with us. We’ll watch a feed, look at what’s actually happening, and send you home with a plan built for your baby.
Most visits are covered by insurance at no out-of-pocket cost. In-home in the Charleston area, in-office in Mt. Pleasant, or virtual anywhere in the country.
FAQ section
How can I tell if my baby has gas or reflux?
Gas usually resolves quickly once the air is released, so your baby settles after burping or passing gas. Reflux tends to involve discomfort during or right after feeds, with arching, pulling off the breast or bottle, and spit-ups that seem painful. Many babies have both.
Is spitting up always reflux?
No. Occasional spit-up is normal for most babies and needs no treatment. It’s worth addressing when it comes with pain, feeding refusal, or poor weight gain.
Does reflux mean my baby needs medication?
Usually not. Most reflux improves with feeding adjustments: smaller and more frequent feeds, upright positioning after eating, and checking latch or bottle flow. Medication is generally reserved for babies with pain, poor weight gain, or breathing issues, and that’s a conversation for your pediatrician.
Can breastfeeding cause gas or reflux?
Breastfeeding doesn’t cause either, but a fast letdown or shallow latch can make both worse by causing your baby to swallow extra air or take milk faster than they can manage. That’s usually fixable.
When should I see someone about it?
If your baby isn’t gaining well, refuses feeds, seems in pain regularly, or you’ve tried adjustments without improvement. An IBCLC can watch a feed and identify what’s happening. Most consults are covered by insurance.
Will my baby grow out of it?
Most do, as the digestive system matures. That said, waiting it out isn’t much comfort when your baby is uncomfortable now, and feeding adjustments often help considerably in the meantime.
About Hillary Sadler, RN, MSN, IBCLC
Hillary Sadler is a labor & delivery nurse, lactation consultant, and mom of four. She’s the founder of Baby Settler and author of Babies Made Simple. Through her book, course, and consults, Hillary helps families simplify feeding and sleep so everyone can thrive.
