Infant colic: causes and remedies

Colic is one of the most frustrating experiences for new parents. Your baby cries hard, appears to be in pain, and nothing seems to help. In most cases, however, colic is temporary and harmless.

What is colic?

Colic is defined as a healthy newborn crying for more than 3 hours a day, more than 3 days a week, for at least 3 weeks. This is known as the "rule of three."

Colic crying is different from regular crying: it is more intense, higher-pitched, and the baby seems inconsolable. Babies may clench their fists, pull their knees toward the tummy, stiffen, or become red in the face.

Colic is not an automatic diagnosis. It is a possible explanation when the baby is growing, feeding, producing wet diapers, and showing no warning signs that suggest another problem.

When does it start and when does it end?

Colic usually begins around 2 to 3 weeks of age and peaks between 6 and 8 weeks. The good news: in the vast majority of cases, it resolves by 3 to 4 months.

Possible causes

Science has not yet identified a single cause. The leading theories include:

• Immature digestive system: the newborn's gut is still learning how to work.
• Air swallowed during feeds: a difficult latch or unsuitable nipple flow can increase discomfort.
• Overstimulation: too much input during the day may be "released" in the evening.
• Maturing nervous system: some babies have a harder time regulating themselves.
• Developing gut flora: the bacterial balance is not yet stable.

Less often, similar crying can be related to reflux, allergies, significant constipation, infection, or feeding difficulties. This is why it helps to look at the whole picture, not crying alone.

What to observe before assuming colic

Colic is usually considered after other obvious causes have been excluded. Before blaming the tummy, check:

• Feeding: is your baby breastfeeding or bottle-feeding as usual? Do they pull off crying, cough, arch, or vomit often?
• Diapers: are wet diapers happening regularly? Are stools very different from usual? Is there blood, a lot of mucus, or diarrhea?
• Growth: is weight gain following your pediatrician's expectations?
• Behavior between crying episodes: when calm, does your baby look alert, responsive, and normal in color?
• Timing and duration: does crying mostly happen in the late afternoon or evening? How long does it last?
• Associated signs: fever, forceful vomiting, breathing difficulty, or unusual sleepiness are not colic to manage on your own.

If you want clearer information for your pediatrician, keep a short diary for 3 to 4 days with crying times, feeds, sleep, diapers, and what helped. To track pee and poop, you can also use the diaper tracker.

What to do during a crying episode

During a crying episode, try one thing at a time for a few minutes instead of changing strategy every few seconds. Too many rapid changes can increase the baby's stimulation and your own stress.

A simple sequence can be:

1. Check diaper, hunger, temperature, and position.
2. Hold your baby upright.
3. Reduce lights, noise, and passing the baby from person to person.
4. Try slow rocking, babywearing, or white noise.
5. If you feel you are losing control, place the baby on their back in a safe place and ask for support.

You may also want to review the guide to newborn fever if crying comes with a high temperature or general signs of illness.

Remedies that may help

Anti-colic positions

• Hold your baby tummy-down on your forearm while awake and supervised, often called the "airplane hold."
• Keep them upright after feeds for at least 15 to 20 minutes.
• Hold them against your chest: contact, warmth, and your heartbeat can be reassuring.

If your baby falls asleep, always move them to a safe sleep surface, on their back, without pillows or soft supports.

Movement

• Rhythmic rocking has a calming effect on the nervous system.
• Walks in a baby carrier or sling can help many babies.
• White noise, kept low and at a distance, can mimic steady womb-like sound.
• A change of room or a few minutes of fresh air can calm the parent too.

Feeding

• If you are breastfeeding, check the latch: a poor latch can make the baby swallow more air.
• If you are bottle-feeding, try an age-appropriate nipple flow and, if recommended, anti-colic nipples.
• Burp the baby halfway through and after each feed.
• Avoid changing formula or the breastfeeding parent's diet without a clinical reason and pediatric guidance.

What to avoid

Not every popular remedy is useful or safe. Avoid:

• giving medicines, drops, herbal teas, or supplements without your pediatrician's guidance;
• changing formula or eliminating foods from the breastfeeding parent's diet without a clinical reason;
• shaking the baby, even "just to calm them";
• letting a newborn sleep on inclined surfaces, pillows, or devices not designed for sleep;
• interpreting every cry as abdominal pain;
• continuing to stimulate the baby if every attempt makes them more upset.

If you suspect reflux, allergy, significant constipation, or feeding difficulty, ask for medical advice. Symptoms can overlap, but the right response may be different.

When to call the pediatrician

Call your pediatrician if the crying is new, very different from usual, or if you are not sure it is colic. Call urgently if:

• your baby has fever, especially under 3 months;
• they refuse milk or feed much less than usual;
• wet diapers are much fewer than usual;
• weight gain is not on track;
• there are traces of blood in the stool;
• there is forceful vomiting or significant diarrhea;
• the baby appears lethargic, poorly responsive, or hard to wake when not crying;
• breathing looks difficult, color changes, or the baby seems very unwell;
• the cry is weak, high-pitched, sudden, or clearly different from their usual cry.

Support for parents

Colic challenges even calm and prepared adults. If possible, take shifts: one person cares for the baby while the other recovers. If you are alone, make a simple plan in advance: who to call, where to place the baby safely, and when to take a break.

If your baby's crying pushes you to unbearable levels of stress:

• place the baby on their back in the crib or another safe place;
• step away for a few minutes;
• breathe, drink water, call someone;
• return to check on the baby at short intervals;
• get help immediately if you are afraid you might shake or hurt the baby.

Prolonged crying does not mean you are doing everything wrong. It means your baby's nervous system is maturing and your family needs practical support, not judgment.

Can crying analysis help?

A digital tool may help you organize observations, but it cannot say with certainty why a newborn is crying. If you want to use it, try the cry analysis tool as an indicative support: it does not replace your pediatrician and should not be used to delay care when warning signs are present.

If the topic is broader and you want to understand hunger, sleep, contact, or overstimulation cues, read the guide to newborn crying.

FAQ

Is colic caused by what the breastfeeding parent eats?

Usually not. In some cases your pediatrician may consider a specific sensitivity, but removing foods at random makes it harder to understand what actually helps and can make the parent's diet worse.

Does colic mean my baby has stomach pain?

Not necessarily. Many babies with colic look uncomfortable, but crying can also be related to nervous system immaturity, tiredness, or overstimulation.

Will an anti-colic bottle solve it?

It may help some babies if swallowed air is part of the problem, but it is not a universal cure. Nipple flow, feeding position, and burping also matter.

Is it okay to let the baby cry?

Not as a routine strategy to "teach" a newborn something. But if you are at your limit, it is safer to place the baby in the crib, on their back, and take a few minutes to calm down than to keep holding them while angry or panicking.

When does colic really pass?

For many babies, colic improves after the early peak and becomes much better by 3 to 4 months. There can still be easier evenings and temporary setbacks without that meaning things are getting worse.

Colic passes. Hang in there, ask for help, and remember: it is not your fault.