Baby gas and stomach pain: why it happens and how to soothe it

Almost every parent has seen it: a baby who seemed perfectly calm suddenly pulls up their legs, turns red, arches their back, and lets out a cry that clearly says something hurts. Gas is one of the most common causes of infant discomfort in the first few months, and while it is usually harmless and temporary, it can make nights feel very long.

Why babies are so gassy

Babies swallow air constantly—during feeding, crying, and simply because their digestive systems are brand new and still learning to coordinate. Their gut bacteria are also becoming established, which produces gas as a natural by-product. The immature digestive tract moves food along unevenly, and gas can get trapped in the small, tight curves of the bowel.

Common contributing factors:

Feeding position that allows extra air ingestion (bottle tilted at an angle, shallow latch)
Fast let-down in breastfeeding—baby gulps to keep up
Crying for extended periods before a feed (lots of swallowed air)
Formula type—some babies do better with different formulations, but discuss any switch with a clinician
Maternal diet—research here is less clear-cut than popular opinion suggests; blanket eliminations rarely help, but a food diary can reveal individual patterns

Signs your baby has trapped gas

Legs pulled toward belly during or after feeds
Distended, drum-like belly
Passing a lot of gas that seems to bring visible relief
Fussiness that eases after a bowel movement or passing gas
Interrupted feeding—breaking off, re-latching, arching

Gas pain tends to come and go within minutes. Pain that is constant, that worsens, or that is accompanied by other symptoms warrants medical attention.

How gas disrupts sleep and feeding

Trapped gas is one of the more common reasons babies wake 30–60 minutes into a nap—the point at which the digestive system is most active after a feed. Overnight, discomfort from gas can cause frequent brief waking that looks like a "sleep problem" but is actually a comfort problem.

If your baby settles well but wakes predictably at a consistent short interval after every feed, and if position changes or burping brings relief, digestion is the likely culprit. Logging feed times and gas observations alongside sleep helps surface these patterns over a few days.

Practical techniques to help

During feeding

Keep baby as upright as possible during and after feeds
For bottle feeding: use a slow-flow teat and tilt the bottle so no air enters the teat
Burp more frequently—every 60–90 ml for bottle feeding, or when switching breast
Allow baby to set the pace; forced fast feeding means more swallowed air

After feeding

Upright hold for 15–20 minutes after a feed before laying baby flat
Gentle tummy massage: warm hands, clockwise circles around the navel
Bicycle legs: gently cycle legs in a slow pedalling motion with baby on their back
"Tiger in the tree" hold: baby face-down along your forearm, head near your elbow, applying gentle tummy pressure

Environment

Try to feed before hunger escalates to prolonged crying
If a dummy (pacifier) helps soothe, it can reduce the frantic swallowing that comes with crying—introduce one only when breastfeeding is well established if that applies to your family

Colic: when gas is part of a larger picture

Colic typically describes inconsolable crying for more than three hours a day, more than three days per week, in an otherwise healthy baby. Gas is likely a component but not the whole story. Most colic resolves by three to four months.

If you are in a colic phase, seek support for yourself as much as for your baby. Exhaustion amplifies everything. Logging the timing and duration of fussy episodes can help you see patterns—and endings—that feel invisible in the moment.

When to call the doctor

Seek medical advice if:

Crying is high-pitched, constant, or inconsolable and different from usual
Baby refuses all feeds
There is blood in stool or vomit
Vomiting is forceful or projectile
Abdomen feels hard and does not soften between episodes
Baby has a fever alongside distress
You are simply concerned—parental instinct is a valid reason to call

This article is general education. Your clinician knows your baby.