How To Soothe A Colicky Infant? Guide

Colic is one of the most exhausting things a new parent can face. The crying is loud, it often happens at the same time each evening, and nothing you try seems to help. The honest answer is that there is no single cure for colic. What helps most is a set of soothing techniques, some changes to feeding and environment, and time — because colic improves on its own in most babies by around three to four months of age.

What Exactly Counts as Colic?

Colic is not a disease. It is a pattern of behavior defined by how much a baby cries, not by any test or lab result.

The most widely used definition comes from a pediatrician named Morris Wessel, published in 1954. It describes a baby who cries for more than three hours a day, more than three days a week, for more than three weeks. The baby is otherwise healthy and growing normally. This “rule of threes” is still the standard clinicians use, though many now apply it more loosely.

Colic usually starts in the first few weeks of life and peaks around six weeks. It typically fades by three to four months. The crying often clusters in the late afternoon or evening and can look intense — clenched fists, arched back, red face, pulled-up legs. That appearance can be alarming, but it does not mean the baby is in danger.

One thing worth clarifying: colic is not the same as a baby who is simply fussy or going through a developmental leap. It is a distinct, prolonged pattern. If your baby cries a lot but settles easily and feeds and grows well, that may just be normal newborn behavior.

Why Does Colic Happen?

No one knows exactly what causes colic, and that is not a failure of research — it is genuinely unclear. Several theories exist, and most likely more than one factor is involved in different babies.

One leading idea involves the immature gut and its developing nervous system. A newborn’s digestive tract and the nerves that control it are still maturing. This can lead to uncoordinated gut activity that may cause discomfort.

Another theory points to the gut microbiome — the community of bacteria living in the intestines. Some studies suggest babies with colic have different gut bacteria than babies without it, but the evidence is not consistent enough to say this is the cause.

Other factors that have been studied include:

• Exposure to cigarette smoke, either during pregnancy or after birth
• Feeding practices and how much air a baby swallows
• Individual differences in how sensitive a baby is to stimulation
• Parental stress and the baby’s temperament, which can influence each other

What is clear is that colic is not caused by bad parenting. It is not a sign that you are doing something wrong. It happens in babies who are well cared for and well fed.

How To Soothe A Colicky Infant

Soothing a colicky baby is about stacking several calming techniques together, not finding one magic move. Babies are different, so what works one night may not work the next.

The techniques below are the ones most often recommended by pediatric clinicians. None of them is proven to stop colic, but many parents find they reduce the intensity or shorten the episodes.

Reproduce the womb environment

Newborns are often calmed by sensations that mimic the womb. Try swaddling with arms snug, holding the baby on their side or stomach against your chest, making a shushing sound near their ear, and gently rocking. Some parents use a pacifier as well. This combination is sometimes called the “five S’s” — swaddle, side or stomach position, shush, swing, and suck.

A safety note that matters: the side and stomach positions are for holding a calm, awake baby only. Always place a baby to sleep on their back, alone, on a firm surface. That is the recommendation from the American Academy of Pediatrics and it lowers the risk of sleep-related death.

Use motion and sound

Steady, rhythmic motion helps many babies. Walking with the baby in a carrier, gentle bouncing while seated, or a car ride can work. White noise — a fan, a vacuum, or a white noise machine — is another common option. If you use a white noise machine, keep the volume low and place it away from the baby’s head.

Try skin-to-skin contact

Holding a baby bare-chested against a parent’s bare chest is well established for calming newborns and supporting regulation. It is simple and free, and it also gives the parent a moment to sit down.

Take breaks

This is not a soothing technique for the baby, but it is essential. A crying baby can push any adult to their limit. If you feel yourself losing control, put the baby safely in the crib on their back and step away for a few minutes. Call someone for help. Never shake a baby — shaking can cause serious brain injury or death.

Does Changing Feeding Help?

Feeding changes help some babies and not others. The evidence is mixed, and it is worth being cautious about big changes.

If you bottle-feed, check the nipple flow and try to feed in a more upright position. Both can reduce how much air a baby swallows. Burp the baby well during and after feeds.

For formula-fed babies, some clinicians suggest a brief trial of a hydrolyzed formula — one where the proteins are broken into smaller pieces. The evidence for this is limited and results vary. Talk to your pediatrician before switching, because formula changes are not risk-free and can be costly.

For breastfed babies, some parents try removing cow’s milk from the mother’s diet. A small number of babies do react to cow’s milk protein passed through breast milk. But this is not the cause of most colic, and elimination diets can be hard to maintain and can affect the mother’s nutrition. Do this only with medical guidance.

What does not have good evidence: giving babies herbal teas, gripe water, or over-the-counter colic drops. Some products contain ingredients that are not recommended for infants. Simethicone drops, widely sold for gas, have not been shown in studies to reduce colic crying. Check with your pediatrician before giving an infant anything beyond breast milk or formula.

When Should You Call a Doctor?

Colic itself is not dangerous, but some conditions that look like colic do need medical attention. Call your pediatrician if you see any of the following:

• Crying that starts suddenly and is much more intense than usual
• Fever in a baby under three months old
• Vomiting that is forceful or green
• Blood in the stool, or a baby who is not having normal stools
• Poor feeding, weight loss, or fewer wet diapers
• A baby who seems limp, unusually sleepy, or hard to wake
• Crying that continues past four to five months

These signs can point to problems such as a feeding intolerance, an infection, or a bowel issue. They are not common, but they are worth ruling out. Trust your instincts — if something feels wrong, call.

It is also reasonable to check in with your pediatrician even without red flags. They can confirm your baby is growing well and offer support. Many parents find that hearing “your baby is healthy” is itself a relief.

How Long Does Colic Last?

Colic improves with time. In most babies, crying peaks around six weeks and then gradually decreases. By three to four months, the pattern usually resolves.

That timeline can feel endless when you are in the middle of it. One thing that helps is tracking when the crying happens. Many babies have a predictable window, often in the evening. If you know it is coming, you can plan around it — have a partner or family member take over, or set up a routine that includes the soothing techniques above.

Some research suggests that parental stress and infant crying affect each other. A baby who cries a lot can increase parental stress, and parental stress can make it harder to stay calm. This is not blame — it is a reason to get support. Asking for help is a practical step, not a sign of weakness.