Gassy newborns tend to show a predictable cluster of body language: pulling their legs up toward their belly, clenching their fists, flushing in the face, and tensing their abdomen. If your baby is doing some combination of these while fussing or crying, gas is one of the most likely explanations. The good news is that gas discomfort typically peaks around six weeks of age and improves significantly by three months.
Body Language That Points to Gas
Newborns can’t tell you what’s wrong, but their bodies are surprisingly expressive. A gassy baby will often draw their knees up toward a tight, firm belly. You might notice clenched fists, an arched back, or a flushed face. The crying tends to be sharp and sudden, often starting shortly after a feeding, and your baby may squirm or seem like they’re straining without producing a bowel movement.
One reliable way to check is to gently feel your baby’s belly. If it feels hard or distended compared to its usual softness, trapped gas is a common cause. You may also hear your baby’s stomach gurgling more than usual, or notice them passing gas frequently but still seeming uncomfortable, which suggests more air is trapped higher up in the digestive tract.
Why Newborns Get So Gassy
A newborn’s digestive system is fairly inefficient at birth. The way the gut moves and responds to food changes as a baby grows, which means those early weeks involve a lot of trial and error as the intestines learn to process milk and move things along. Babies swallow air during feedings, and they swallow even more air when they cry. That air has to go somewhere, and until the digestive system matures enough to move it through efficiently, it can get trapped and cause discomfort.
Bottle-fed babies tend to swallow more air than breastfed babies, especially if the milk flows too fast or the bottle angle lets air into the nipple. But breastfed babies get gassy too, particularly if they have a forceful letdown to contend with or if they latch and unlatch frequently during a feeding.
Gas vs. Colic
Gas and colic look similar on the surface, and gas is often part of the colic picture, but they’re not the same thing. The classic definition of colic is crying for three or more hours a day, three or more days a week, for three or more weeks. Colic crying tends to happen at predictable times (usually evenings), sounds like screaming or pain, and continues even when you’ve addressed every possible need: hunger, wet diaper, temperature, comfort.
Regular gas discomfort, by contrast, is more episodic. It flares up around feedings, resolves once the baby passes gas or has a bowel movement, and doesn’t follow the same relentless pattern. If your baby is inconsolable for hours on end with a tense body, stiff legs, and arched back, and this happens most evenings like clockwork, you may be dealing with colic rather than simple gas.
How to Help a Gassy Baby
Belly Massage
Gentle stomach strokes can help move trapped air toward the bowels. The key is direction: start on the lower right side of your baby’s belly (where the large intestine begins) and stroke in a clockwise half-moon shape toward the lower left side (where the colon begins). One hand follows the other in a smooth, rhythmic motion. Think of it as tracing the lower half of a clock face, from about 7 o’clock around to 5 o’clock. You can also try gently stroking the upper middle of your baby’s foot, just below the fleshy pad. This pressure point corresponds to the stomach and intestines and may offer some relief.
Bicycle Legs and Movement
Lay your baby on their back and gently move their legs in a cycling motion, as if they’re pedaling a bicycle. This helps physically push gas through the intestines. You can also try gently twisting your baby’s hips and legs from side to side. Many parents find that a combination of bicycle legs and belly massage, done for a few minutes after feedings, prevents the worst gas episodes from building up.
Burping Techniques
Burping isn’t just about patting a baby’s back. Position matters. One effective technique is to sit your baby upright on your lap with your hand supporting their head, then let them lean slightly forward at the waist. This upright posture moves air to the top of the stomach, and the gentle forward lean puts just enough pressure on the stomach to help release it. Try burping midway through a feeding, not just at the end. If you wait until the bottle or breast is finished, the air has already had time to travel deeper into the digestive tract where it’s harder to release.
Feeding Adjustments
If you’re bottle feeding, how you offer the bottle can make a significant difference in how much air your baby swallows. Hold your baby upright rather than lying flat, and keep the bottle horizontal so the nipple is only about half full of milk. This slows the flow and gives your baby more control. Encourage breaks every few sucks by lowering the bottle so the nipple empties but stays in your baby’s mouth, then bring it back up when they start sucking again.
Nipple size matters more than most parents realize. No matter your baby’s age, a slow-flow or newborn-sized nipple (often labeled size 0) better mimics the natural flow from the breast. Watch for signs that milk is coming too fast: gulping, wide eyes, choking, or milk leaking from the corners of the mouth. If you see any of these, pause the feeding and restart with the bottle more level.
Watch for hunger cues and feed on demand rather than on a rigid schedule. A baby who gets overly hungry before a feeding will cry, swallow air, and then gulp milk frantically, all of which introduce more gas.
What the Timeline Looks Like
Gas discomfort follows a fairly predictable arc. It tends to worsen during the first several weeks of life as your baby takes in more milk and the digestive system is still maturing. The peak is around six weeks. After that, most babies show steady improvement, and by three months the worst of it is typically behind you. This doesn’t mean gas disappears entirely, but the intense fussing episodes become less frequent and shorter as your baby’s gut gets better at moving air through.
If your baby’s gas symptoms are getting worse rather than better after the two-to-three month mark, or if you notice bloody stools, projectile vomiting, fever, or poor weight gain alongside the fussiness, those patterns warrant a conversation with your pediatrician. Persistent, worsening gas beyond the expected window can occasionally signal a milk protein sensitivity or another digestive issue that’s worth investigating.