Baby has gas: causes, relief measures (and when to consult a doctor)

Baby has gas : most of the time it's normal (immature digestion + swallowed air) and a few simple actions (burping, positions, massage) are enough to relieve it.

• Quickly understand the common causes according to age
• Apply an anti-gas routine (burp, posture, massage) in 5–10 minutes
• Optimize bottle-feeding or breastfeeding to limit swallowed air
• Identify the warning signs that require medical advice
• Avoid common mistakes (too rapid a change in milk, overstimulation)

In practice, a baby may pass gas several times a day, especially in the first few weeks. The goal is not to eliminate all gas (that's impossible), but to reduce discomfort and check for any worrying signs.

1) Gas in babies: what is normal (and what is not)

Gas comes from the mixture of swallowed air and normal fermentation in the intestine. In infants, the digestive system is immature: the coordination of sucking, swallowing, and breathing, as well as peristalsis, gradually improve.

This is often normal if your baby:

• eats and wets her diapers normally
• gains weight
• has episodes of discomfort but calms down at times
• has stools consistent with her age (variable especially during breastfeeding)

More worrying if the discomfort is accompanied by a clear change in general condition or specific symptoms (see section “When to consult”).

2) The most frequent causes (in order of probability)

Swallowed air (bottle feeding, breastfeeding, crying)

Too fast a flow, a poor latch, an unsuitable nipple, or prolonged crying increases the amount of air swallowed. In practical terms, this results in a tense tummy, squirming, and difficulty burping.

Immature digestion

Bowel movements are still irregular. Gas shifts, causing "attacks," especially at the end of the day. The difference is that even with perfect technique, episodes can still occur.

Gastroesophageal reflex (GERD) and discomfort

Infantile reflux (GERD) is common. It can increase fussiness and air swallowing. For reliable guidelines on digestive symptoms and assessment, see scientific sources .

Constipation (less common in breastfed infants)

Very infrequent and hard stools (with pain) can block gas. Note: a breastfed baby can have infrequent bowel movements without being constipated if they remain soft.

Cow's milk protein allergy (CMPA) / intolerances

Less common, but worth considering if there is pain accompanied by blood/mucus in the stool, eczema, significant vomiting, or a drop in growth curve. Do not change formula without medical advice: diagnosis relies on a structured approach. For a cautious and general overview of allergies, see the scientific source .

3) 10-minute anti-gas routine 

Objective: to help expel air and relax the abdomen. Perform these actions calmly, ideally after breastfeeding/bottle-feeding or when experiencing discomfort.

• 1. Vertical pause (2–3 min) : baby against you, back well supported, calm breathing.
• 2. Gentle burping : Lightly tap or apply very gentle pressure while moving upwards along the back. If nothing comes out, stop: persisting can be irritating.
• 3. “belly against forearm” position (1–2 min) : baby lying on your forearm, head in the crook of your elbow, belly supported.
• 4. Abdominal massage (2 min) : circular movements in a clockwise direction , very light pressure.
• 5. “Bicycle” of the legs (1–2 min) : bend-straighten gently, then knees towards the belly for 2–3 seconds.

In practical terms, if you have to choose a single movement: vertical + rot + carrying often gives the best effort/result ratio.

4) Breastfeeding: adjustments that reduce gas

• Check the latch : mouth wide open, lips curled back, chin pressed against the breast. A shallow latch means more air is swallowed.
• Managing a strong ejection reflex : if baby chokes and often lets go, try a “biological nurturing” (semi-reclining) position to slow the flow.
• Take breaks : if baby drinks very quickly, interrupt 1–2 times for a burp.
• Avoid “random” food eliminations : removing foods for the mother without a clear sign can weaken the diet and is not a simple treatment for gas.

If you suspect an allergy (severe eczema, blood in the stool, significant vomiting), seek medical advice. Recommendations vary depending on the clinical context; a useful public resource is the scientific source .

5) Baby bottle: 7 adjustments that make all the difference

• Appropriate teat flow rate : too fast = baby swallows air and becomes agitated; too slow = he gets tired and swallows air too.
• Tilted bottle : teat always full of milk (fewer bubbles).
• Pause time : stop every 30–60 seconds to breathe and possibly burp.
• Preparation without foam : roll the bottle between your hands instead of shaking vigorously.
• Warm temperature : may improve intake (without being a miracle solution).
• Do not overfeed : too large a volume increases discomfort (ask your healthcare professional for a guideline).
• Avoid frequent milk changes : only test a change with a clear reason and sufficient observation time.

6) Practical chart: normal, to monitor, emergency

7) Herbs, herbal teas and supplements: caution (and safe alternatives)

When a baby has gas , many people think of chamomile, fennel, or "anti-colic waters." However, caution is essential with infants: dosage, quality, and safety vary, and some sugary preparations can worsen the problem.

• Before 6 months : avoid self-medication with herbal teas/supplements without medical advice.
• Prefer : babywearing, massage, dietary adjustments, meal times.
• If you are considering a product : ask your pediatrician/pharmacist for advice, especially in cases of prematurity or treatment.

For an overview of the use of natural products and safety (without replacing pediatric advice), you can consult a scientific source .

8) Common mistakes that perpetuate gas

• Changing milk too quickly : it doesn't allow time to assess (it often takes several days).
• Overstimulating baby during a crisis : too much handling can increase crying and therefore swallowed air.
• Forcing a burp : too much pressure on the abdomen, sudden movements.
• Meals that are too large / too far apart : this increases the digestive load and discomfort.
• Mistaking gas for other pain : infection, ear infection, tongue-tie, etc. If the behavior changes significantly, we question again.

9) For whom are these tips most useful?

• Newborns (0–8 weeks) : swallowed air + immature digestion = most frequent period.
• Bottle-fed babies : flow rate adjustments and technique often greatly reduce symptoms.
• Babies with very large appetites : breaks + smaller, more frequent meals help.
• Exhausted parents : a short, repeatable routine and an alert chart prevent aimless wandering.

10) FAQ: Baby has gas

Why does my baby have gas, especially in the evening?

Fatigue combined with the accumulation of swallowed air throughout the day makes gas more bothersome. Practical advice: slow down at the end of the day, carry your food, and take breaks during meals.

How long does a “gas phase” last?

Often a few weeks, with a peak around 3–8 weeks, then gradual improvement.

Should I change formula if baby has gas?

Not automatically. Start with the technique (flow, incline, pauses). Only change with a clear pattern and follow-through.

Do probiotics help?

Sometimes in certain situations, but not always. Seek pediatric advice, especially before 3 months. For general health information, see scientific sources .

Does lying on your stomach provide relief?

When carrying (belly supported on the forearm), yes, often. For sleeping: follow the recommendations for sleeping on your back.

When should I seek emergency medical attention?

Green vomit, blood in the stool, difficulty breathing, very lethargic baby, signs of dehydration or refusal to feed.

Can massage hurt?

It must be very gentle. If the baby tenses up or cries more, stop and return to upright carrying.

My baby farts but doesn't cry: is there anything I should do?

No. Gas without discomfort is normal.

Useful resources

• page digestion
• sleep

Scientific references 

To strengthen your health information and remain cautious, here are some reliable sources to consult:

• PubMed (medical studies database)
• WHO (health information)
• NCCIH (Natural Products: Caution and Safety)
• Harvard Health (health education)

Note : This article is not a substitute for a consultation. If you have any doubts, especially regarding an infant under 3 months old, seek medical advice.